CN109758311B - Wheelchair vehicle - Google Patents
Wheelchair vehicle Download PDFInfo
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- CN109758311B CN109758311B CN201910165233.XA CN201910165233A CN109758311B CN 109758311 B CN109758311 B CN 109758311B CN 201910165233 A CN201910165233 A CN 201910165233A CN 109758311 B CN109758311 B CN 109758311B
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- underframe
- hinged
- backrest
- seat frame
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- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a wheelchair, which comprises an underframe, a seat frame, a backrest, front wheels and rear wheels, wherein the front wheels and the rear wheels are respectively arranged at the front end and the rear end of the underframe, the rear end of the seat frame is hinged with the backrest, and the front end of the seat frame is connected with the front end of the underframe through a hinged rod assembly; the rear end of the underframe is connected with the backrest through a locking mechanism. The wheelchair can be folded quickly and conveniently, is convenient to carry and occupies small space.
Description
Technical Field
The invention relates to wheelchair technology, in particular to a wheelchair.
Background
Wheelchair is a tool commonly used by people with mobility difficulties. The prior wheelchair mainly comprises wheels, a frame carrying a seat and a backrest. These wheelchairs, while convenient for people with mobility difficulties, have the following drawbacks: when the wheelchair is folded, the wheelchair structure can only be folded in the middle of two sides, and the folded state occupies a larger space and is inconvenient to store and transport; the wheelchair is limited by the structure, the folding operation of the wheelchair needs larger force, the operation is inconvenient, and the wheelchair needs longer time to be folded from the using state.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the wheelchair which is simple and reasonable in structure, convenient to operate and compact in folding.
The aim of the invention is achieved by the following technical scheme: the wheelchair comprises an underframe, a seat frame, a backrest, front wheels and rear wheels, wherein the front wheels and the rear wheels are respectively arranged at the front end and the rear end of the underframe, the rear end of the seat frame is hinged with the backrest, and the front end of the seat frame is connected with the front end of the underframe through a hinged rod assembly; the rear end of the underframe is connected with the backrest through a locking mechanism.
Preferably, the hinge rod assembly comprises two groups of hinge units, and the two groups of hinge units are respectively positioned at two sides of the front end of the underframe; the hinge unit comprises a hinge supporting rod and a hinge plate, one end of the hinge supporting rod is arranged on the bottom frame, one end of the hinge plate is hinged with the other end of the hinge supporting rod through a first hinge shaft, and the other end of the hinge plate is hinged with the seat frame through a second hinge shaft.
Preferably, the wheelchair further comprises a driving mechanism, the driving mechanism comprises a controller, a brushless direct current motor, a battery and a battery shell, the controller is mounted on the bottom frame, the brushless direct current motor is mounted on the rear wheel, the brushless direct current motor is connected with the controller, one end of the battery shell is connected with the bottom frame, the other end of the battery shell is connected with the hinge rod assembly, the battery is mounted in the battery shell, and the battery is connected with the controller.
Preferably, the chassis is provided with a telescopic pull rod.
Preferably, the front end of the underframe is hinged with a foot pad.
Preferably, one end of the backrest is provided with a U-shaped locking part, the locking mechanism comprises a folding switch, a hinge piece and a connecting rod which is matched with the locking part and is in an inverted U shape, one end of the hinge piece is hinged with the locking part, and the other end of the hinge piece is hinged with the connecting rod; when the locking state is carried out, the locking part is connected with the connecting rod through the folding switch.
Preferably, the rear end of the chassis is provided with an anti-falling mechanism, the anti-falling mechanism comprises an anti-falling wheel and an anti-falling supporting rod, one end of the anti-falling supporting rod is arranged on the chassis, and the anti-falling wheel is arranged at the other end of the anti-falling supporting rod.
Preferably, the two sides of the sitting frame are provided with armrest mechanisms, each armrest mechanism comprises a cushion frame and an armrest supporting rod, the rear end of the cushion frame is hinged with the backrest through a third hinge shaft, and one end of each armrest supporting rod is hinged with the cushion frame through a hinge frame; the side of the sitting frame is provided with a fourth hinge shaft, and the other end of the handrail supporting rod is hinged with the fourth hinge shaft.
Preferably, one of the pads is provided with a control handle, which is connected to the controller.
Preferably, the underframe is provided with a manual brake connected with the rear wheel.
Compared with the prior art, the invention has the following advantages:
The wheelchair mainly comprises an underframe, a seat frame, a backrest, front wheels and rear wheels, wherein the underframe, the seat frame and the backrest are connected in a hinged mode, and the underframe and the backrest are fixed through a locking mechanism. The underframe, the sitting frame and the backrest are conveniently connected through the hinge, and the locking mechanism is used for fixing the shape, so that the wheelchair is compact in fit between all the parts after being folded, and forms a shape similar to a trunk, so that the wheelchair occupies small space when being stored, and is convenient to move.
Drawings
Fig. 1 is a schematic view of the structure of the wheelchair of the present invention in a use state.
Fig. 2 is a front view of the wheelchair of the present invention in a use state.
Fig. 3 is a rear view of the wheelchair of the present invention in a use state.
Fig. 4 is a schematic view of the structure of the wheelchair in a folded state and a telescopic link in a retracted state.
Fig. 5 is a front view of the wheelchair of the present invention in a collapsed condition and with the telescoping pull rod retracted.
Fig. 6 is a schematic view of the structure of the wheelchair in a folded state and a telescopic link in an extended state.
Fig. 7 is a front view of the wheelchair of the present invention in a folded state and a telescopic link extended state.
Fig. 8 is a bottom view of the wheelchair of the present invention in a folded state and a telescopic link extended state.
Wherein 1 is the chassis, 2 is the seat frame, 3 is the back, 301 is the locking part, 4 is the front wheel, 5 is the rear wheel, 6 is the articulated rod subassembly, 601 is the articulated bracing piece, 602 is the articulated slab, 7 is locking mechanical system, 701 is the receipts switch, 702 is the articulated piece, 703 is the connecting rod, 8 is the seatpad, 9 is the back cushion, 10 is first articulated shaft, 11 is the second articulated shaft, 12 is actuating mechanism, 1201 is the controller, 1202 is the battery, 1203 is the battery case, 13 is telescopic pull rod, 14 is the callus on the sole, 1401 is the backing plate, 1402 is the backing bar, 15 is the anti-fall mechanism, 1501 is the anti-fall wheel, 1502 is the anti-fall bracing piece, 16 is the handrail mechanism, 1601 is the backing plate, 1602 is the handrail bracing piece, 17 is the third articulated shaft, 18 is the fourth articulated shaft, 19 is the articulated frame, 20 is the manual brake, 21 is the control handle.
Detailed Description
The invention is further described below with reference to the drawings and examples.
The wheelchair shown in fig. 1 to 3 comprises an underframe 1, a seat frame 2, a backrest 3, a front wheel 4 and a rear wheel 5, wherein the front wheel 4 and the rear wheel 5 are respectively arranged at the front end and the rear end of the underframe 1, the rear end of the seat frame 2 is hinged with the backrest 3, and the front end of the seat frame 2 is connected with the front end of the underframe 1 through a hinged rod assembly 6; the rear end of the chassis 1 is connected with the backrest 3 through a locking mechanism 7. In order to improve the comfort of the wheelchair, a seat cushion 8 is arranged on the seat frame 2, and a back cushion 9 is arranged on the backrest 3.
Specifically, the underframe 1 and the seat frame 2 are arranged in parallel, and the underframe 1, the hinge rod assembly 6 and the seat frame 2 form a parallelogram linkage structure. As shown in fig. 1 to 3, when the wheelchair is in use, the locking mechanism 7 locks the chassis 1 and the backrest 3 so that the chassis 1, the hinge rod assembly 6 and the seat frame 2 form a stable parallelogram link structure to provide sufficient bearing capacity to ensure that a user can sit on the wheelchair stably. As shown in fig. 4 and 5, when the wheelchair is in a folded state, the locking mechanism 7 is released, the rear wheel 5 is used as a reference point, the front end of the chassis 1 is pulled upwards, due to the hinged connection mode, the chassis 1 and the seat frame 2 are folded and attached, meanwhile, the backrest 3 is hinged with the rear end of the seat frame 2, the backrest 3 is attached to the upper surface of the seat frame 2, and the outer contours of the chassis 1, the seat frame 2 and the backrest 3 are matched and all present rectangles, so that after the three are attached together, a box body similar to a cuboid is formed, the folded structure is compact, the occupied space is small, and a plurality of wheelchairs are conveniently stacked together, so that the wheelchair is convenient to carry. For further convenient movement, as shown in fig. 6-8, the collapsed wheelchair is then pulled out of the chassis 1 by the telescopic links 13.
The hinge rod assembly 6 comprises two hinge units which are respectively positioned at two sides of the front end of the underframe 1; the hinge unit comprises a hinge support rod 601 and a hinge plate 602, one end of the hinge support rod 601 is mounted on the underframe 1, one end of the hinge plate 602 is hinged with the other end of the hinge support rod 601 through a first hinge shaft 10, and the other end of the hinge plate 602 is hinged with the seat frame 2 through a second hinge shaft 11. The structure is simple, and the installation is convenient. Wherein, the hinge plates 602 in each hinge unit are two groups, one end of the two hinge plates 602 is hinged with two sides of the hinge support rod 601 through the first hinge shaft 10, the other end of the two hinge plates 602 is hinged with two sides of the hinge part at the front end of the seat frame 2 through the second hinge shaft 11, and a containing groove is formed between the two hinge plates 602, one end of the battery shell 1203 can be arranged in the containing groove, which further improves the compactness of the structure and makes the appearance practical; meanwhile, the appearance is transited and slipped, so that the scratch to the user is avoided.
The wheelchair also comprises a driving mechanism 12, wherein the driving mechanism 12 comprises a controller 1201, a brushless direct current motor, a battery 1202 and a battery shell 1203, the controller 1201 is arranged on the chassis 1, the brushless direct current motor is arranged on the rear wheel 5, the brushless direct current motor is connected with the controller 1201, one end of the battery shell 1203 is connected with the chassis 1, the other end of the battery shell 1203 is connected with a hinged rod assembly 6, the battery 1202 is arranged in the battery shell 1203, and the battery 1202 is connected with the controller 1201. The wheelchair of this embodiment utilizes electric drive, and the wheelchair is not limited to electric drive simultaneously, is equipped with the pushing handle in the top of back 3 to make things convenient for the manpower to promote. The battery 1202 is mounted with a battery housing 1203, which protects the battery 1202, ensuring that the battery 1202 can operate efficiently. One of the shelves 1601 is provided with a control handle 21 that is connected to the controller 1201. The control handle 21 is mainly used for controlling the forward, backward, steering, etc. of the wheelchair.
The chassis 1 is provided with a telescopic pull rod 13. The telescopic pull rod 13 is the same as the pull rod in the suitcase, and when the wheelchair is folded, the telescopic pull rod 13 is formed into a box shape, and extends out of the underframe 1 from time to time, so that the wheelchair can be conveniently dragged by people.
The front end of the underframe 1 is hinged with a foot pad 14. This foot pad 14 mainly includes a pad 1401 and a pad bar 1402 in an "L" shape, one end of the pad bar 1402 being hinged to the front end of the chassis 1, the pad 1401 being mounted to the other end of the pad bar 1402. The hinged foot pad 14 allows the foot pad 14 to be retracted and improves user comfort during use.
One end of the backrest 3 is provided with a U-shaped locking part 301, the locking mechanism 7 comprises a folding switch 701, a hinge 702 and a connecting rod 703 which is matched with the locking part 301 and is in an inverted U shape, one end of the hinge 702 is hinged with the locking part 301, and the other end of the hinge 702 is hinged with the connecting rod 703; when the locking state is performed, the locking portion 301 and the connecting rod 703 are also connected by the folding switch 701.
The rear end of the chassis 1 is provided with an anti-falling mechanism 15, the anti-falling mechanism 15 comprises an anti-falling wheel 1501 and an anti-falling supporting rod 1502, one end of the anti-falling supporting rod 1502 is installed on the chassis 1, and the anti-falling wheel 1501 is installed at the other end of the anti-falling supporting rod. The structure is simple, and the wheelchair is prevented from being turned backwards, so that the safety of the wheelchair in use is improved.
The two sides of the sitting frame 2 are provided with armrest mechanisms 16, the armrest mechanisms 16 comprise a cushion frame 1601 and an armrest supporting rod 1602, the rear end of the cushion frame 1601 is hinged with the backrest 3 through a third hinge shaft 17, and one end of the armrest supporting rod 1602 is hinged with the cushion frame 1601 through a hinge frame 19; the side of the sitting frame 2 is provided with a fourth hinge shaft 18, and the other end of the handrail supporting rod 1602 is hinged with the fourth hinge shaft 18. The armrest mechanism 16 is mounted in a hinged manner, so that the armrest can be changed along with the state change of the wheelchair besides the use function of the armrest mechanism 16. Namely, when the wheelchair is in a folded state, the armrests can be tightly attached to the underframe 1 and the backrest 3, so that the structure is more compact.
The chassis 1 is provided with a manual brake 20 connected to the rear wheel 5. The manual brake 20 can brake the wheelchair, so that the safety is improved.
The above embodiments are preferred examples of the present invention, and the present invention is not limited thereto, and any other modifications or equivalent substitutions made without departing from the technical aspects of the present invention are included in the scope of the present invention.
Claims (3)
1. A wheelchair, characterized in that: the seat comprises a bottom frame, a seat frame, a backrest, a front wheel and a rear wheel, wherein the front wheel and the rear wheel are respectively arranged at the front end and the rear end of the bottom frame, the rear end of the seat frame is hinged with the backrest, and the front end of the seat frame is connected with the front end of the bottom frame through a hinged rod assembly; the rear end of the underframe is connected with the backrest through a locking mechanism;
The underframe and the seat frame are arranged in parallel, and the underframe, the hinging rod assembly and the seat frame form a parallelogram connecting rod structure; when the wheelchair is in a use state, the locking mechanism locks and fixes the underframe and the backrest so that the underframe, the hinging rod assembly and the seat frame form a stable parallelogram connecting rod structure; when the wheelchair is in a folded state, the locking mechanism is released, the rear wheel is used as a datum point, the front end of the underframe is pulled upwards, the underframe and the seat frame are folded and attached due to the hinged connection mode, meanwhile, the backrest is hinged with the rear end of the seat frame, the backrest is attached to the upper surface of the seat frame, the outer contours of the underframe, the seat frame and the backrest are matched, and all the outer contours are rectangular, so that a box body similar to a cuboid is formed after the underframe, the seat frame and the backrest are attached together; the telescopic pull rod is pulled out of the underframe after the telescopic pull rod is folded;
The hinge rod assembly comprises two hinge units which are respectively positioned at two sides of the front end of the underframe; the hinge unit comprises a hinge supporting rod and a hinge plate, one end of the hinge supporting rod is arranged on the underframe, one end of the hinge plate is hinged with the other end of the hinge supporting rod through a first hinge shaft, and the other end of the hinge plate is hinged with the sitting frame through a second hinge shaft;
the device also comprises a driving mechanism, wherein the driving mechanism comprises a controller, a brushless direct current motor, a battery and a battery shell, the controller is arranged on the underframe, the brushless direct current motor is arranged on the rear wheel, the brushless direct current motor is connected with the controller, one end of the battery shell is connected with the underframe, the other end of the battery shell is connected with the hinging rod assembly, the battery is arranged in the battery shell, and the battery is connected with the controller;
the two hinge plates in each hinge unit are hinged with two sides of the hinge support rod through a first hinge shaft, the other ends of the two hinge plates are hinged with two sides of the hinge part at the front end of the seat frame through a second hinge shaft, and a containing groove is formed between the two hinge plates, so that one end of the battery case can be installed in the containing groove;
The front end of the underframe is hinged with a foot pad;
One end of the backrest is provided with a U-shaped locking part, the locking mechanism comprises a folding switch, a hinge piece and a connecting rod which is matched with the locking part and is in an inverted U shape, one end of the hinge piece is hinged with the locking part, and the other end of the hinge piece is hinged with the connecting rod; when the locking state is carried out, the locking part is connected with the connecting rod through a folding switch;
the anti-falling mechanism comprises an anti-falling wheel and an anti-falling supporting rod, one end of the anti-falling supporting rod is arranged on the underframe, and the anti-falling wheel is arranged at the other end of the anti-falling supporting rod;
the two sides of the seat frame are provided with armrest mechanisms, each armrest mechanism comprises a cushion frame and an armrest supporting rod, the rear end of the cushion frame is hinged with the backrest through a third hinge shaft, and one end of each armrest supporting rod is hinged with the cushion frame through a hinge frame; the side of the sitting frame is provided with a fourth hinge shaft, and the other end of the handrail supporting rod is hinged with the fourth hinge shaft.
2. A wheelchair as claimed in claim 1, wherein: one of the pad frames is provided with a control handle which is connected with the controller.
3. A wheelchair as claimed in claim 1, wherein: the chassis is provided with a manual brake connected with the rear wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910165233.XA CN109758311B (en) | 2019-03-05 | 2019-03-05 | Wheelchair vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910165233.XA CN109758311B (en) | 2019-03-05 | 2019-03-05 | Wheelchair vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109758311A CN109758311A (en) | 2019-05-17 |
| CN109758311B true CN109758311B (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910165233.XA Active CN109758311B (en) | 2019-03-05 | 2019-03-05 | Wheelchair vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109758311B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280870A (en) * | 2017-06-27 | 2017-10-24 | 上海互邦智能康复设备股份有限公司 | A kind of electric wheelchair of utilization brushless electric machine and multi-level planet gear speed reducer structure driving |
| CN107440854A (en) * | 2017-09-19 | 2017-12-08 | 常州三贵康复器材有限公司 | Foldable electric wheeled chair |
| CN207785382U (en) * | 2017-06-27 | 2018-08-31 | 上海互邦智能康复设备股份有限公司 | A kind of electric wheelchair of list brushless motor control |
| CN207970203U (en) * | 2017-05-31 | 2018-10-16 | 常州高尔登科技有限公司 | A kind of folding wheel chair |
| CN209916423U (en) * | 2019-03-05 | 2020-01-10 | 佛山达浩医疗科技有限公司 | Wheel chair |
-
2019
- 2019-03-05 CN CN201910165233.XA patent/CN109758311B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207970203U (en) * | 2017-05-31 | 2018-10-16 | 常州高尔登科技有限公司 | A kind of folding wheel chair |
| CN107280870A (en) * | 2017-06-27 | 2017-10-24 | 上海互邦智能康复设备股份有限公司 | A kind of electric wheelchair of utilization brushless electric machine and multi-level planet gear speed reducer structure driving |
| CN207785382U (en) * | 2017-06-27 | 2018-08-31 | 上海互邦智能康复设备股份有限公司 | A kind of electric wheelchair of list brushless motor control |
| CN107440854A (en) * | 2017-09-19 | 2017-12-08 | 常州三贵康复器材有限公司 | Foldable electric wheeled chair |
| CN209916423U (en) * | 2019-03-05 | 2020-01-10 | 佛山达浩医疗科技有限公司 | Wheel chair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109758311A (en) | 2019-05-17 |
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| CB02 | Change of applicant information |
Address after: 528100 East 9 Fengye Avenue, Leping Town, Sanshui District, Foshan City, Guangdong Province (Residence Declaration) Applicant after: FOSHAN DAHAO MEDICAL TECHNOLOGY Co.,Ltd. Address before: 528100 Yuantanwei 32 202, Leping Town, Sanshui District, Foshan City, Guangdong Province Applicant before: FOSHAN DAHAO MEDICAL TECHNOLOGY Co.,Ltd. |
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Address after: 528137 Building 1, building 2, building 2, building 3, building 3, building 4, building 5, building 6 and building 7, No. 9, Fanye Avenue, Leping Town, Sanshui District, Foshan City, Guangdong Province (residence declaration) Applicant after: FOSHAN DAHAO MEDICAL TECHNOLOGY Co.,Ltd. Address before: 528100 No. 9, Fengye Avenue East, Leping Town, Sanshui District, Foshan City, Guangdong Province (residence declaration) Applicant before: FOSHAN DAHAO MEDICAL TECHNOLOGY Co.,Ltd. |
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