CN212699372U - Lifting multifunctional wheelchair - Google Patents
Lifting multifunctional wheelchair Download PDFInfo
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- CN212699372U CN212699372U CN202021899090.XU CN202021899090U CN212699372U CN 212699372 U CN212699372 U CN 212699372U CN 202021899090 U CN202021899090 U CN 202021899090U CN 212699372 U CN212699372 U CN 212699372U
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- connecting piece
- unfolding
- rack
- rod
- electric push
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- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 claims 7
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 206010016173 Fall Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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Abstract
The utility model discloses a lifting multifunctional wheelchair, which comprises a backrest, a cushion support frame, a leg rest, a bottom plate, a front wheel and a rear wheel, wherein the cushion is supported on the cushion support frame; the device also comprises a unfolding mechanism and a lifting mechanism, wherein the unfolding mechanism comprises a first unfolding connecting piece, a second unfolding connecting piece, a third unfolding connecting piece and a first electric push rod; the first electric push rod drives the second unfolding connecting piece to move back and forth, so that the backrest and the leg rest are unfolded; the lifting mechanism comprises a front double-connecting rod, a rear double-connecting rod, a front gear, a rear gear, a front rack, a rear rack, a rack connecting piece and a second electric push rod, and the second electric push rod drives the rack connecting piece to move back and forth, so that the cushion supporting frame can move up and down in parallel with the bottom plate. The utility model provides a lifting multifunctional wheelchair for the old to assist the old to get on and off the bed and stand, which can help the old to get on and off the bed independently when being at home.
Description
Technical Field
The utility model relates to the technical field of the old-people assisting apparatus, in particular to an elevation type multifunctional wheelchair.
Background
With the increase of aging, the demand of wheelchairs on the market is more and more, and many old people are inconvenient to move, so that the old people need to be assisted by a caregiver when going to bed or get out of bed, and particularly need to go from bed to wheelchair, which is very inconvenient. The existing common wheelchair is simple in structure, when the old needs to stand up, the old needs to be held up by a person, the person who holds up needs great strength to hold up the old, the labor intensity of people is high, and the old is in risk of falling down. And the old people also need to spend a great deal of strength when standing up from the common wheelchair, and the old people are difficult to stand without being held by the wheelchair, so that a multifunctional wheelchair which can assist the old people to get on and off the bed and stand is urgently needed to be designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multi-functional wheelchair of over-and-under type aims at solving the problem among the prior art that above-mentioned background art provided.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the lifting multifunctional wheelchair comprises a backrest, a cushion support frame, a leg rest, a bottom plate, front wheels and rear wheels, wherein the cushion is supported on the cushion support frame; further comprising:
the unfolding mechanism comprises a first unfolding connecting piece, a second unfolding connecting piece, a third unfolding connecting piece and a first electric push rod; the first unfolding connecting piece and the third unfolding connecting piece are L-shaped, the top points of the bent positions of the first unfolding connecting piece and the third unfolding connecting piece are respectively hinged to the front side and the rear side of the cushion supporting frame, the backrest and the leg rest are respectively and fixedly arranged on the first unfolding connecting piece and the third unfolding connecting piece, and the bottom end of the first unfolding connecting piece and the top end of the third unfolding connecting piece are respectively hinged to two ends of the second unfolding connecting piece; the first electric push rod drives the second unfolding connecting piece to move back and forth;
the lifting mechanism comprises a front double connecting rod, a rear double connecting rod, a front gear, a rear gear, a front rack, a rear rack, a rack connecting piece and a second electric push rod, and the front gear and the rear gear are respectively arranged at the relative front part and the relative rear part of the bottom plate; the top ends of the front double connecting rods and the rear double connecting rods are respectively hinged to the opposite front part and the opposite rear part of the cushion supporting frame, the bottom ends of the front double connecting rods and the rear double connecting rods are respectively fixed to the front gear and the rear gear, and the front double connecting rods and the rear double connecting rods respectively comprise two connecting rods which are mutually hinged; the front rack is meshed with the front gear, the rear rack is meshed with the rear gear, the front rack and the rear rack are fixedly connected through the rack connecting piece, and the second electric push rod drives the rack connecting piece to move back and forth, so that the cushion supporting frame can move up and down in parallel with the bottom plate.
The vehicle seat is further provided with a vertical vehicle seat middle rod connected to the opposite middle part of the second unfolding connecting piece, a pulley is arranged at the bottom end of the vehicle seat middle rod, and a sliding groove matched with the pulley is formed in the opposite middle part of the bottom plate along the front-back direction; the tail part of the first electric push rod is fixedly arranged on the bottom plate, and the output end of the first electric push rod is connected to the lower part of the middle rod of the saddle.
The further arrangement is that the bending directions of the front double-connecting rod and the rear double-connecting rod are symmetrical front and back.
The rack connecting piece is bent, so that the front rack and the rear rack are respectively meshed above and below the front gear and the rear gear.
The further setting lies in, second electric putter's afterbody fixed set up on the bottom plate, second electric putter's output fixedly connected with push pedal, the push pedal with gear connecting piece fixed connection.
The bicycle is further provided with a bicycle seat bottom frame on the left side and the right side of the bottom plate respectively, a front wheel and a rear wheel connecting frame are fixedly arranged on the bicycle seat bottom frame respectively, and the front wheel and the rear wheel are arranged at the front end and the rear end of the front wheel and the rear wheel connecting frame respectively.
The seat cushion is characterized in that foldable handrails are arranged on two sides of the seat cushion respectively and comprise handrails and handrail folding rods, and two ends of each handrail folding rod are hinged to the handrails and the seat cushion supporting frame respectively.
The seat cushion is further arranged in a manner that the opposite front side of the seat cushion is hinged on the seat cushion supporting frame, and a vertical fixing rod is downwards arranged at the bottom of the opposite front end of the seat cushion supporting frame; the novel seat cushion is characterized in that a first lifting-assisting connecting rod and a second lifting-assisting connecting rod which are mutually hinged are arranged at the bottom of the opposite rear side of the seat cushion, the top end of the first lifting-assisting connecting rod is hinged to the bottom of the opposite rear side of the seat cushion, the middle of the second lifting-assisting connecting rod is hinged to the bottom end of the fixing rod, and a pedal plate is fixedly arranged at the bottom end of the second lifting-assisting connecting rod.
The further arrangement is that the front wheels are universal wheels.
A further arrangement is that the rear wheel is a large diameter hand wheel.
Compared with the prior art, the utility model, its beneficial effect lies in: the utility model discloses an old man provides a multi-functional wheelchair that supplementary old man of over-and-under type went up and went down the bed and stood, can help the old man to go up and go down the bed when being at alone to can assist the old man to stand up from the wheelchair, possessed certain security, have wide market perspective.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the development structure of the present invention.
Fig. 3 is a detailed view of the middle deployment mechanism of the present invention.
Fig. 4 is a detailed schematic view of the middle gear of the present invention.
Fig. 5 is a schematic side half-section plan view of the present invention.
Fig. 6 is a detailed schematic view of the middle pulley chute of the present invention.
Fig. 7 is a schematic half-sectional perspective view of the present invention.
Fig. 8 is a schematic view of the lifting aid of the present invention.
In the figure: 100. a backrest; 200. a cushion; 300. a cushion support frame; 400. a leg rest; 500. a bottom plate 501, a saddle underframe 502 and a front and rear wheel connecting frame; 600. a front wheel; 700. a rear wheel; 800. an armrest 801, an armrest folding bar;
1. a first deployment connector; 2. a second deployment connection; 3. a third deployment link; 4. a first electric push rod; 5. a first backrest connecting rod; 6. a second backrest connecting rod; 7. a first leg rest connecting rod; 8. a second leg rest connecting rod; 9. a seat intermediate lever; 10. a pulley; 11. a chute; 12. a front double link; 13. a rear double link; 14. a front gear; 15. a rear gear; 16. a front rack; 17. a rear rack; 18. a rack bar connection; 19. pushing the plate; 20. a second electric push rod; 21. fixing the rod; 22. a first rising-assisting connecting rod; 23. a second rising-assisting connecting rod; 24. a foot pedal; 25. and (4) a middle block.
Detailed Description
The present invention relates to a lifting multifunctional wheelchair, and more particularly, to a lifting multifunctional wheelchair. Examples of the described embodiments are shown in the accompanying drawings, wherein elements having the same or similar function or elements having the same or similar function will be designated by the same reference numerals only, and the embodiments described below with reference to the drawings are exemplary and intended to explain the present invention and should not be construed as limiting the present invention.
Referring to fig. 1 to 8, the lifting multifunctional wheelchair comprises a backrest 100, a seat cushion 200, a seat cushion support frame 300, a leg rest 400, a bottom plate 500, front wheels 600, rear wheels 700, a spreading mechanism and a lifting mechanism, wherein the seat cushion 200 is supported on the seat cushion support frame 300, and the bottom plate 500 is parallel to the seat cushion 200; the left side and the right side of the bottom plate 500 are respectively provided with a seat bottom frame 501, the seat bottom frame 501 is respectively and fixedly provided with a front wheel connecting frame and a rear wheel connecting frame 502, the front wheel 600 and the rear wheel 700 are respectively installed at the front end and the rear end of the front wheel connecting frame and the rear wheel connecting frame 502, the front wheel 600 is a universal wheel, the direction of an old man can be conveniently controlled, the rear wheel 700 is a large-diameter manual wheel, and the old man can shake the wheel with a hand. The two sides of the seat cushion 200 are respectively provided with a foldable handrail, the foldable handrail comprises a handrail 800 and two handrail folding rods 801, the two ends of the handrail folding rods 801 are respectively hinged to the handrail 800 and the seat cushion support frame 300, the handrail 800 can be folded on the two sides of the seat cushion 200 through the handrail folding rods 801, and the wheelchair can be conveniently moved out of the old from the side.
The unfolding mechanism comprises two first unfolding connecting pieces 1 which are parallel to each other, two second unfolding connecting pieces 2 which are parallel to each other, two third unfolding connecting pieces 3 which are parallel to each other and a first electric push rod 4, wherein the first unfolding connecting pieces 1 and the third unfolding connecting pieces 3 are L-shaped, the top point of the bent part of each first unfolding connecting piece 1 is hinged to the opposite rear side of the cushion supporting frame 300 through a first backrest connecting rod 5, and the top point of the bent part of each third unfolding connecting piece 3 is hinged to the opposite front side of the cushion supporting frame 300 through a first leg-leaning connecting rod 7; the backrest 100 is fixed on one side of the first unfolding connecting piece 1, and the other side end part of the first unfolding connecting piece 1 is hinged with one end of the second unfolding connecting piece 2 through a second backrest connecting rod 6; the leg rest 400 is fixed on one side of the third unfolding connector 3, and the other end of the third unfolding connector 3 is hinged with the other end of the second unfolding connector 2 through a second leg rest connecting rod 8.
In the above structure, the first unfolding connecting piece 1 can rotate around the first backrest connecting rod 5, so as to drive the backrest 100 to rotate, and the backrest and the seat cushion 200 form different included angles; the third unfolding link 3 can rotate around the first leg rest connecting rod 7, so as to drive the leg rest 400 to rotate, so that the leg rest and the seat cushion 200 form different included angles. The first unfolding connecting piece 1 and the third unfolding connecting piece 3 are connected through the second unfolding connecting piece 2 and can synchronously and reversely rotate, so that the included angles between the backrest 100 and the leg rest 400 and the seat cushion 200 are always kept consistent but are reversed.
In this embodiment, the two second unfolding connectors 2 are connected together at their opposite middle portions by an intermediate block 25, a vertical seat intermediate rod 9 is welded at the opposite middle portion of the intermediate block 25, a pulley 10 is disposed at the bottom end of the seat intermediate rod 9, a sliding groove 11 matched with the pulley 10 is disposed at the opposite middle portion of the bottom plate 500 along the front-rear direction, and the pulley 10 can roll in the sliding groove 11. The tail of the first electric push rod 4 is fixedly arranged on the bottom plate 500, the output end of the first electric push rod 4 is fixedly connected with the relative lower part of the saddle middle rod 9, and the specification of the first electric push rod 4 is as follows: the stroke is 100mm, the speed is 24mm/s, and the rated voltage is 12V. When the first electric push rod 4 pushes the saddle middle rod 9 to move forward, the pulley 10 at the bottom end of the saddle middle rod 9 rolls forward along the chute 11 and drives the second unfolding connecting piece 2 to move forward, further drives the first unfolding connecting piece 1 to turn over downwards and simultaneously drives the third unfolding connecting piece 3 to turn over upwards until the backrest 100 and the leg rest 400 are both turned over to be horizontal, so that the old people can lie on the horizontal plane formed by the backrest 100, the cushion 200 and the leg rest 400, and then the armrest 800 is folded, so that the old people can turn over or move to the bed by translation.
The lifting mechanism comprises a second electric push rod 20, and a front double connecting rod 12, a rear double connecting rod 13, a front gear 14, a rear gear 15, a front rack 16, a rear rack 17 and a rack connecting piece 18 which are respectively two in number, wherein the front gear 14 and the rear gear 15 are respectively arranged at the relative front part and the relative rear part of the bottom plate 500 through a gear rack; the top ends of the front double-connecting rod 12 and the rear double-connecting rod 13 are respectively hinged to the opposite front part and the opposite rear part of the cushion supporting frame 300, the bottom ends of the front double-connecting rod 12 and the rear double-connecting rod 13 are respectively fixed to the front gear 14 and the rear gear 15, and the front double-connecting rod 12 and the rear double-connecting rod 13 respectively comprise two connecting rods which are mutually hinged; the front rack 16 is meshed with the front gear 14, the rear rack 17 is meshed with the rear gear 15, and the front rack 16 and the rear rack 17 are fixedly connected through a rack connecting piece 18, so that the front rack 16 and the rear rack 17 are in linkage.
In the above structure, the bending directions of the front double-connecting rod 12 and the rear double-connecting rod 13 are symmetrical front and back, that is, the front double-connecting rod 12 and the rear double-connecting rod 13 are both bent outwards or both bent inwards, and the symmetrical front and back structure is firmer. The front rack 16 is meshed above the front gear 14, the rear rack 17 is meshed below the rear gear 15, and a rack connecting piece between the front rack 16 and the rear rack 17 is bent.
In this embodiment, the tail of the second electric putter 20 is fixedly disposed on the bottom plate 500, the output end of the second electric putter 20 is fixedly connected with the push plate 19, the push plate 19 is fixedly connected with the two gear connectors 18, and the specification of the second electric putter 20 is as follows: the stroke is 10mm, the speed is 7mm/s, and the rated voltage is 12V. When the second electric push rod 20 drives the rack connecting piece 18 to move back and forth, the front rack 16 and the rear rack 17 synchronously move and simultaneously drive the front gear 14 and the rear gear 15 to rotate in opposite directions, so that one of the front double-connecting-rod 12 and the rear double-connecting-rod 13 which is positioned below is driven to rotate, the included angle of the double-connecting-rod is changed, and the purpose of lifting the cushion is achieved.
In this embodiment, the cushion 200 can be controlled to be flush with the bed of the elderly through the lifting function of the cushion, and the wheelchair is unfolded by combining the unfolding mechanism, so that the elderly can get on and off the bed more conveniently.
In this embodiment, in order to realize the function of facilitating the elderly to stand up, the opposite front side of the seat cushion 200 is hinged to the seat cushion support frame 300, and the bottom of the opposite front end of the seat cushion support frame 300 is provided with a vertical fixing rod 21 downwards; the bottom of the opposite rear side of the seat cushion 200 is provided with a first rising-assisting connecting rod 22 and a second rising-assisting connecting rod 23 which are mutually hinged, the top end of the first rising-assisting connecting rod 22 is hinged to the bottom of the opposite rear side of the seat cushion 200, the opposite middle part of the second rising-assisting connecting rod 23 is hinged to the bottom end of the fixing rod 21, and the bottom end of the second rising-assisting connecting rod 23 is fixedly provided with a pedal 24. When the old need stand from the wheelchair, only need to step on the running-board 24 downwards slightly hard, the health leans forward a little at the same time, can drive cushion 200 and incline forward through first helping and rise connecting rod 22 and second helping and rise connecting rod 23 to reach the purpose of helping to rise.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. All changes and modifications that may be made by the technical spirit of the present invention to the above embodiments by simple modification are considered to fall within the scope of the present invention.
Claims (10)
1. The lifting multifunctional wheelchair comprises a backrest, a cushion support frame, a leg rest, a bottom plate, front wheels and rear wheels, wherein the cushion is supported on the cushion support frame; it is characterized by also comprising:
the unfolding mechanism comprises a first unfolding connecting piece, a second unfolding connecting piece, a third unfolding connecting piece and a first electric push rod; the first unfolding connecting piece and the third unfolding connecting piece are L-shaped, the top points of the bent positions of the first unfolding connecting piece and the third unfolding connecting piece are respectively hinged to the front side and the rear side of the cushion supporting frame, the backrest and the leg rest are respectively and fixedly arranged on the first unfolding connecting piece and the third unfolding connecting piece, and the bottom end of the first unfolding connecting piece and the top end of the third unfolding connecting piece are respectively hinged to two ends of the second unfolding connecting piece; the first electric push rod drives the second unfolding connecting piece to move back and forth;
the lifting mechanism comprises a front double connecting rod, a rear double connecting rod, a front gear, a rear gear, a front rack, a rear rack, a rack connecting piece and a second electric push rod, and the front gear and the rear gear are respectively arranged at the relative front part and the relative rear part of the bottom plate; the top ends of the front double connecting rods and the rear double connecting rods are respectively hinged to the opposite front part and the opposite rear part of the cushion supporting frame, the bottom ends of the front double connecting rods and the rear double connecting rods are respectively fixed to the front gear and the rear gear, and the front double connecting rods and the rear double connecting rods respectively comprise two connecting rods which are mutually hinged; the front rack is meshed with the front gear, the rear rack is meshed with the rear gear, the front rack and the rear rack are fixedly connected through the rack connecting piece, and the second electric push rod drives the rack connecting piece to move back and forth, so that the cushion supporting frame can move up and down in parallel with the bottom plate.
2. The elevating multifunctional wheelchair as claimed in claim 1, wherein a vertical seat middle bar is connected to the opposite middle portion of the second unfolding connector, a pulley is provided at the bottom end of the seat middle bar, and a sliding groove matching with the pulley is provided in the opposite middle portion of the base plate in the front-rear direction; the tail part of the first electric push rod is fixedly arranged on the bottom plate, and the output end of the first electric push rod is connected to the lower part of the middle rod of the saddle.
3. The elevating multifunctional wheelchair as claimed in claim 1, wherein the bending directions of the front and rear double links are symmetrical in front and rear.
4. The elevating multi-function wheelchair as claimed in claim 3, wherein the rack connection member is bent such that the front and rear racks are engaged above and below the front and rear gears, respectively.
5. The lifting multifunctional wheelchair as claimed in claim 1, wherein the second electric push rod is fixedly arranged at the rear end of the base plate, and the output end of the second electric push rod is fixedly connected with a push plate, and the push plate is fixedly connected with the rack connecting member.
6. The elevating multifunctional wheelchair as claimed in claim 1, wherein seat bottom frames are respectively provided at left and right sides of the base plate, front and rear wheel frames are respectively fixed to the seat bottom frames, and the front and rear wheels are respectively mounted to front and rear ends of the front and rear wheel frames.
7. The elevating multifunctional wheelchair as claimed in claim 1, wherein foldable armrests are provided on both sides of the seat cushion, respectively, and each foldable armrest comprises an armrest and an armrest folding rod, both ends of the armrest folding rod are hinged to the armrest and the seat cushion support frame, respectively.
8. The liftable multifunctional wheelchair as claimed in claim 1, wherein the opposite front sides of the seat cushion are hinged to the seat cushion support frames, and the bottom parts of the opposite front ends of the seat cushion support frames are provided with vertical fixing rods downwards; the novel seat cushion is characterized in that a first lifting-assisting connecting rod and a second lifting-assisting connecting rod which are mutually hinged are arranged at the bottom of the opposite rear side of the seat cushion, the top end of the first lifting-assisting connecting rod is hinged to the bottom of the opposite rear side of the seat cushion, the middle of the second lifting-assisting connecting rod is hinged to the bottom end of the fixing rod, and a pedal plate is fixedly arranged at the bottom end of the second lifting-assisting connecting rod.
9. The elevating multi-function wheelchair as claimed in claim 1, wherein the front wheels are universal wheels.
10. The elevating multi-function wheelchair of claim 1 wherein said rear wheels are large diameter hand-operated wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021899090.XU CN212699372U (en) | 2020-09-03 | 2020-09-03 | Lifting multifunctional wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021899090.XU CN212699372U (en) | 2020-09-03 | 2020-09-03 | Lifting multifunctional wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212699372U true CN212699372U (en) | 2021-03-16 |
Family
ID=74925083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021899090.XU Expired - Fee Related CN212699372U (en) | 2020-09-03 | 2020-09-03 | Lifting multifunctional wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212699372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648141A (en) * | 2021-08-18 | 2021-11-16 | 燕山大学 | Multifunctional standing-assisting wheelchair |
-
2020
- 2020-09-03 CN CN202021899090.XU patent/CN212699372U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648141A (en) * | 2021-08-18 | 2021-11-16 | 燕山大学 | Multifunctional standing-assisting wheelchair |
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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: 20210316 Termination date: 20210903 |