CN219803887U - Wheelchair - Google Patents
Wheelchair Download PDFInfo
- Publication number
- CN219803887U CN219803887U CN202321366604.9U CN202321366604U CN219803887U CN 219803887 U CN219803887 U CN 219803887U CN 202321366604 U CN202321366604 U CN 202321366604U CN 219803887 U CN219803887 U CN 219803887U
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- China
- Prior art keywords
- frame
- wheelchair
- foot rest
- rotating shaft
- backrest
- 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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- 230000007306 turnover Effects 0.000 abstract description 7
- 230000000474 nursing effect Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Invalid Beds And Related Equipment (AREA)
Abstract
The utility model relates to the field of nursing equipment and discloses a wheelchair, which comprises a wheelchair frame and a folding frame arranged on the wheelchair frame, wherein the folding frame comprises a sitting frame horizontally fixed on the wheelchair frame, and foot frames and backrest frames hinged at two ends of the sitting frame, a driving mechanism capable of driving the foot frames to turn up to a horizontal state or turn down by a certain angle is arranged on the wheelchair frame, a linkage structure capable of driving the backrest frames to turn reversely when the foot frames turn over is arranged among the wheelchair frame, the foot frames and the backrest frames, the linkage structure enables the backrest frames to turn reversely to the horizontal state when the foot frames turn over to the horizontal state, and the foot frames, the sitting frame and the backrest frames form a flat plane for a user to lie down for rest, so the linkage structure has the advantage that the switching of the bed to the wheelchair can be realized only by driving the foot frames to move.
Description
Technical Field
The utility model relates to the field of nursing equipment, in particular to a wheelchair.
Background
The wheelchair is provided with wheels and can help to replace a walking chair, is an important moving tool for the recovery of wounded persons, patients and disabled persons at home, turnover transportation, treatment and outgoing activities, not only meets the riding-instead demands of disabled persons and inconvenient persons, but also is convenient for the family members to move and care the patients, so that the patients exercise and participate in social activities by means of the wheelchair, most of the existing wheelchairs support the back and legs of the user at fixed angles, the application function is single, the application range is small, and when the user needs to lie down for rest, nursing staff is required to lift the person from the wheelchair to the bed, thus the working strength and the working load of the nursing staff are increased, and inconvenience is caused.
The prior wheelchair refers to a multifunctional wheelchair disclosed in Chinese patent publication No. CN104586585A, the wheelchair comprises a wheelchair frame, a backrest bracket arranged at the rear end of the wheelchair frame in a rotating manner, a wheelchair backrest arranged on the backrest bracket, a support pad bracket arranged at the front end of the wheelchair frame in a rotating manner, a lower leg support pad arranged on the support pad bracket, and a wheelchair seat surface arranged between the wheelchair backrest and the lower leg support pad on the wheelchair frame, wherein the backrest bracket comprises an extension section which extends downwards and is lower than the wheelchair seat surface, a first cylinder is hinged to the support pad bracket, a second cylinder is hinged to the extension section, one ends of the first cylinder and the second cylinder, which are far away from the support pad and the extension section, are respectively arranged between the support bracket and the backrest bracket in the wheelchair frame in a rotating manner, the lower leg support pad is pushed to move upwards when the first cylinder stretches out, the second cylinder contracts to enable the backrest bracket to move downwards until the seat surface, the wheelchair backrest and the lower leg support pad end surface are flush and are positioned at a horizontal position, the transition can be completed, a patient can rest on the wheelchair seat, and the wheelchair seat is not needed to rest, and the patient can rest on the wheelchair seat when lying down.
The multifunctional wheelchair is provided with two air cylinders, and the lower leg supporting pad and the wheelchair backrest are respectively driven to move so as to realize the conversion from the wheelchair to the bed.
Disclosure of Invention
The utility model provides a wheelchair capable of switching to a bed while reducing driving components, aiming at the defect that two driving components are needed in the existing wheelchair switching to the bed.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
the utility model provides a wheelchair, includes wheelchair frame and the folding leg of setting on the wheelchair frame, and the folding leg includes the seat frame that the level is fixed on the wheelchair frame, and articulates foot rest and the back frame at seat frame both ends, is provided with the actuating mechanism that can order about the foot rest to turn up to the horizontality or turn down certain angle on the wheelchair frame, be provided with between wheelchair frame, foot rest and the back frame and order about the back frame reverse upset to the horizontality when the foot rest turns to the horizontality, the linkage includes fixed first pivot that sets up and rotate with seat frame on the foot rest, fixed setting and rotate with seat frame on the back frame and rotate the cooperation of pegging graft in wheelchair frame, is provided with a mating groove on the wheelchair frame, is provided with the linkage subassembly that orders about the second pivot to turn over when the first pivot rotates in the mating groove, and the linkage subassembly includes respectively in first gear and the second gear of the coaxial fixed setting of second pivot and the tooth chain of synchromesh on first gear and second gear.
By adopting the scheme, the driving mechanism drives the foot rest to overturn, the first rotating shaft rotates along with the foot rest overturn, so that the first rotating shaft drives the first gear to rotate, the first gear drives the second rotating shaft to rotate and enable the second rotating shaft to rotate along the opposite direction to the rotation of the first rotating shaft, the backrest frame and the foot rest do opposite directions, when the foot rest is overturned to a horizontal state, the backrest frame reversely overturns to the horizontal state, the foot rest, the seat frame and the backrest frame form a flat plane for a user to lie down for rest, and the linkage structure is beneficial in that the bed can be switched to a wheelchair only by driving the foot rest to move.
Preferably, the linkage assembly is provided with at least one set.
By adopting the scheme, the linkage assembly is provided with a group of linkage which can realize the linkage of the foot rest and the backrest frame, and the switching between the bed and the wheelchair is realized.
Preferably, the driving part comprises a mounting frame and a telescopic part which are fixed at the lower end of the wheelchair frame, the telescopic part comprises a fixing part and a telescopic part, and one ends of the fixing part and the telescopic part, which are opposite, are respectively hinged and matched with the mounting frame and the foot rest.
By adopting the scheme, the foot rest is pushed when the telescopic part stretches out, so that the foot rest turns upwards, the linkage structure drives the back rest to turn reversely, when the foot rest turns to be in the same plane with the seat frame, the back rest and the seat frame are also in the same plane, and the wheelchair is converted into a bed for a person to lie down for rest; when the telescopic part is retracted, the foot rest is turned downwards, the backrest frame is turned reversely, and the bed is converted into a wheelchair.
Preferably, the telescopic member is an electric push rod or an air cylinder.
By adopting the scheme, the foot rest is turned over when the electric push rod or the air cylinder stretches out or retracts, and the linkage structure drives the backrest frame to reversely turn over, so that the switching of the wheelchair and the bed state is realized.
Preferably, a foot rest which can be turned down to be abutted with one end of the foot rest far away from the seat frame and is in a horizontal state when the foot rest is turned over to be in a horizontal state is rotatably arranged at one end of the foot rest far away from the seat frame.
By adopting the scheme, the pedal frame can be folded upwards to form a plane parallel to the seat frame, so that a user can place feet, the comfort of using the wheelchair is improved, or the length of the bed is prolonged.
Preferably, a limiting frame is fixed at the lower end of the wheelchair frame, and the limiting frame comprises an inclined frame which is obliquely arranged and used for limiting the overturning angle of the foot rest and a flat frame which is horizontally arranged at the lower end of the inclined frame and used for supporting the pedal frame in a horizontal state.
By adopting the scheme, the inclined frame lifts the foot rest to slightly lift the foot rest, so that the foot rest of a user is placed on the pedal frame more comfortably, when the pedal frame is abutted against the flat frame, the foot rest continues to move downwards, the pedal frame is upwards turned to the bottom end of the pedal frame to be attached to the flat frame, and the flat frame is convenient for the upward turning of the pedal frame to be in a horizontal state.
Preferably, an electric device for enabling the wheelchair to move transversely is arranged at one end of the mounting frame away from the seat frame in a protruding mode.
By adopting the scheme, the electric device can enable the wheelchair to move transversely.
Preferably, the electric device is a universal wheel.
By adopting the scheme, the universal wheel is simple in structure and can change any direction of the movement of the wheelchair.
The utility model has the remarkable technical effects due to the adoption of the technical scheme:
the foot rest and the backrest frame are oppositely turned to a horizontal state, the foot rest, the seat frame and the backrest frame form a flat plane for a user to lie down for rest, and the linkage structure is beneficial in that the foot rest can be switched to a wheelchair only by driving the foot rest to move.
Drawings
FIG. 1 is an isometric view of a wheelchair of this embodiment;
FIG. 2 is an isometric view of the wheelchair of the present embodiment becoming a bed;
FIG. 3 is a side view of the wheelchair of the present embodiment in combination with a seat frame, foot rest, back rest frame and linkage;
FIG. 4 is a cross-sectional view of A-A of FIG. 3;
fig. 5 is a split view of the linkage structure of the present embodiment;
FIG. 6 is a front view of the wheelchair of the present embodiment after conversion to a bed;
FIG. 7 is a cross-sectional view of E-E of FIG. 6;
fig. 8 is an enlarged view of a in fig. 7.
The names of the parts indicated by the numerical reference numerals in the above drawings are as follows: 1. a sitting frame; 2. a foot rest; 3. a backrest frame; 4. a pedal frame; 5. a telescopic member; 501. a telescopic part; 502. a fixing part; 6. a first rotating shaft; 7. a mounting frame; 8. a mating groove; 9. an inclined frame; 10. a flat frame; 11. a second rotating shaft; 1202. a toothed chain; 1201. a first gear; 1203. a second gear; 13. a universal wheel; 14. a wheelchair frame.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Examples
The wheelchair is shown in combination with fig. 1, and comprises a wheelchair frame 14 and a folding frame arranged on the wheelchair frame 14, wherein the folding frame comprises a sitting frame 1 horizontally fixed on the wheelchair frame 14, and a foot rest 2 and a backrest frame 3 hinged at two ends of the sitting frame 1, a driving mechanism capable of driving the foot rest 2 to turn up to a horizontal state or turn down by a certain angle is arranged on the wheelchair frame 14, a linkage structure capable of driving the backrest frame 3 to reversely turn over when the foot rest 2 turns over is arranged among the wheelchair frame 14, the foot rest 2 and the backrest frame 3, the linkage structure enables the foot rest 2 to reversely turn over to the horizontal state when the backrest frame 3 turns over to the horizontal state, and the foot rest 2, the sitting frame 1 and the backrest frame 3 form a flat plane for a user to lie down for rest.
The driving part comprises a mounting frame 7 fixed at the lower end of a wheelchair frame 14 and a telescopic part 5, the telescopic part 5 comprises a fixing part 502 and a telescopic part 501, the opposite ends of the fixing part 502 and the telescopic part 501 are respectively hinged and matched with the mounting frame 7 and a foot rest 2, the telescopic part 5 is an electric push rod or an air cylinder, the telescopic part 5 of the embodiment is the air cylinder, when the air cylinder stretches out, the foot rest 2 is pushed to upwards overturn, the linkage structure drives the back rest frame 3 to reversely overturn, when the foot rest 2 is overturned to be in a horizontal plane with the sitting frame 1, the back rest frame 3 and the sitting frame 1 are also in the same plane, and the wheelchair is converted into a bed for lying down for rest; when the air cylinder is retracted, the foot rest 2 is turned downwards, and the backrest frame 3 is turned reversely, so that the wheelchair and the bed state can be switched.
The foot rest 2 is provided with a foot rest 4 which can be turned downwards to be abutted against one end of the foot rest 2 far away from the seat frame 1 and is in a horizontal state when the foot rest 2 is turned upwards to be in a horizontal state far away from the seat frame 1, and is combined with the figures 1-2, the foot rest 4 can be turned upwards to form a plane parallel to the seat frame 1, a user can place feet, the comfort of a wheelchair is increased or the length of a bed is prolonged, a limit frame is fixed at the lower end of the wheelchair frame 14, the limit frame comprises an inclined frame 9 which is obliquely arranged and is used for limiting the turning angle of the foot rest 2 and a flat frame 10 which is horizontally arranged at the lower end of the inclined frame 9, the inclined frame 9 lifts the foot rest 2 slightly, the user can put the foot rest 2 on the foot rest 4 more comfortably, when the foot rest 4 is abutted against the flat frame 10, the foot rest 2 continues to move downwards, the foot rest 4 is turned upwards to the bottom end of the foot rest 4, and the foot rest 4 is turned upwards to be in the flat frame 10, and the flat frame 4 is convenient to be folded to form a horizontal state for fitting.
The linkage structure comprises a first rotating shaft 6 fixedly arranged on the foot rest 2 and in rotating fit with the seat frame 1, a second rotating shaft 11 fixedly arranged on the backrest frame 3 and in rotating fit with the seat frame 1, and a combination 3-8 shows that the first rotating shaft 6 and the second rotating shaft 11 are in rotating plug fit with the wheelchair frame 14, a matching groove 8 is formed in the wheelchair frame 14, a linkage assembly for driving the second rotating shaft 11 to rotate reversely when the first rotating shaft 6 rotates is arranged in the matching groove 8, the linkage assembly comprises a first gear 1201 and a second gear 1203 which are coaxially and fixedly arranged on the first rotating shaft 6 and the second rotating shaft 11 respectively, and a toothed chain 1202 synchronously meshed with the first gear 1201 and the second gear 1203, the linkage assembly is at least provided with one group, the linkage assembly in the embodiment is provided with two groups, the cylinder stretches and drives the foot rest 2 to overturn, the rotating shaft rotates along with the overturn of the foot rest 2, so that the rotating shaft drives the first gear 1201 to rotate reversely, and the backrest frame 3 and the foot rest 2 do reverse movement in directions, and the conversion between a bed and a wheelchair is realized.
Referring to fig. 1, an electric device for making the wheelchair move laterally is provided at one end of the mounting frame 7 away from the seat frame 1, the electric device can make the wheelchair move laterally, the electric device in this embodiment is a universal wheel 13, and when the wheelchair needs to be commutated, the universal wheel 13 drives the wheelchair to change direction.
Claims (8)
1. The utility model provides a wheelchair, includes wheelchair frame (14) and sets up the folding leg frame on wheelchair frame (14), and the folding leg frame is including the seat frame (1) that the level is fixed on wheelchair frame (14), and articulates foot rest (2) and back frame (3) at seat frame (1) both ends, is provided with the actuating mechanism that can order about foot rest (2) to turn up to the horizontality or turn down certain angle on wheelchair frame (14), its characterized in that: the wheelchair comprises a wheelchair frame (14), a foot rest (2) and a backrest frame (3), wherein a linkage structure for driving the backrest frame (3) to reversely turn to a horizontal state when the foot rest (2) turns to the horizontal state is arranged between the foot rest (2) and the backrest frame (3), the linkage structure comprises a first rotating shaft (6) fixedly arranged on the foot rest (2) and in rotating fit with a seat frame (1), a second rotating shaft (11) fixedly arranged on the backrest frame (3) and in rotating fit with the seat frame (1), the first rotating shaft (6) and the second rotating shaft (11) are in rotating plug-in fit with the wheelchair frame (14), a matching groove (8) is formed in the wheelchair frame (14), a linkage assembly for driving the second rotating shaft (11) to reversely turn when the first rotating shaft (6) rotates is arranged in the matching groove (8), and the linkage assembly comprises a first gear (1201) and a second gear (1203) which are coaxially and fixedly arranged on the first rotating shaft (6) and the second rotating shaft (1203) respectively, and a toothed chain (1202) which is synchronously meshed with the first gear (1201) and the second gear (1203).
2. A wheelchair according to claim 1, characterised in that: the linkage assembly is provided with at least one group.
3. A wheelchair according to claim 1, characterised in that: the driving mechanism comprises a mounting frame (7) and a telescopic component (5) which are fixed at the lower end of the wheelchair frame (14), the telescopic component (5) comprises a fixing part (502) and a telescopic part (501), and one opposite ends of the fixing part (502) and the telescopic part (501) are respectively hinged with the mounting frame (7) and the foot rest (2).
4. A wheelchair according to claim 3, characterised in that: the telescopic component (5) is an electric push rod or an air cylinder.
5. A wheelchair according to claim 1, characterised in that: the foot rest (4) which can be turned downwards to be abutted with one end of the foot rest (2) far away from the seat frame (1) and is in a horizontal state when the foot rest (2) is turned over to be in a horizontal state is arranged at one end of the foot rest (2) far away from the seat frame (1) in a rotating mode.
6. A wheelchair according to claim 5, characterised in that: a limit frame is fixed at the lower end of the wheelchair frame (14), and comprises an inclined frame (9) which is obliquely arranged and used for limiting the overturning angle of the foot rest (2) and a flat frame (10) which is horizontally arranged at the lower end of the inclined frame (9) and used for supporting the pedal frame (4) in a horizontal state.
7. A wheelchair according to claim 1, characterised in that: an electric device for enabling the wheelchair to transversely move is arranged at one end of the mounting frame (7) far away from the sitting frame (1) in a protruding mode.
8. A wheelchair according to claim 7, characterised in that: the electric device is a universal wheel (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321366604.9U CN219803887U (en) | 2023-05-31 | 2023-05-31 | Wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321366604.9U CN219803887U (en) | 2023-05-31 | 2023-05-31 | Wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219803887U true CN219803887U (en) | 2023-10-10 |
Family
ID=88208791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321366604.9U Active CN219803887U (en) | 2023-05-31 | 2023-05-31 | Wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219803887U (en) |
-
2023
- 2023-05-31 CN CN202321366604.9U patent/CN219803887U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |