CN116327500B - Nursing chair with adjustable postoperative rehabilitation nursing is used - Google Patents

Nursing chair with adjustable postoperative rehabilitation nursing is used Download PDF

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Publication number
CN116327500B
CN116327500B CN202310595619.0A CN202310595619A CN116327500B CN 116327500 B CN116327500 B CN 116327500B CN 202310595619 A CN202310595619 A CN 202310595619A CN 116327500 B CN116327500 B CN 116327500B
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China
Prior art keywords
worm
chair
chair frame
fixed
nursing
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CN202310595619.0A
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CN116327500A (en
Inventor
郭婷婷
王勇
谭江山
于冰
邓渊瑞
邱梓峰
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Fuwai Hospital of CAMS and PUMC
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Fuwai Hospital of CAMS and PUMC
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Priority to CN202310595619.0A priority Critical patent/CN116327500B/en
Publication of CN116327500A publication Critical patent/CN116327500A/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/045Rear wheel drive
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0866Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable folding down backrest, e.g. where the backrest folds down onto the seat support
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0891Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable having rigid supports, e.g. seat or back supports which retain their shape after folding of the wheelchair
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/12Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128Rests specially adapted therefor, e.g. for the head or the feet for feet
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Abstract

The invention relates to the technical field of nursing, in particular to an adjustable nursing chair for postoperative rehabilitation nursing, which comprises a backrest, a chair frame and armrests, wherein a cushion is fixed above the chair frame, the armrests are welded on two sides above the chair frame, a leg support assembly capable of electrically adjusting an angle is rotatably connected to the top of one end of the chair frame, the backrest is installed at the top of the other end of the chair frame, and a driving unit is arranged at the bottom of the chair frame; the invention uses the sliding mechanism to drive the rear wheel to rotate by the sliding column in the sliding mechanism, so that the distance between the rear wheel and the universal front wheel is lengthened or shortened to adapt to the angle of backrest adjustment to prevent toppling, the adjustment angle of the backrest is not limited, and the condition that the nursing chair is overturned due to overlarge adjustment angle is avoided.

Description

Nursing chair with adjustable postoperative rehabilitation nursing is used
Technical Field
The invention relates to the technical field of nursing, in particular to an adjustable nursing chair for postoperative rehabilitation nursing.
Background
The nursing wheelchair is an important nursing chair, and is a necessary article for nursing old people and wounded patients in old institutions, hospitals and families, especially for people who are recovering after operation, and the nursing wheelchair is needed to be relied on to finish daily life work and rest in many times.
When a part of patients go out and do postoperative rehabilitation examination, the patients generally move through a nursing wheelchair, more serious patients need to move through a sickbed, the sickbed is large, the pushing is inconvenient, the patients cannot be flexibly transferred, and when the patients do the examination, the patients may need to be transferred to an examination bed and adjusted to a lying posture, and the nursing wheelchair generally only has the transfer function and cannot be adjusted to a lying state; in addition, a part of patients are difficult to adjust the self-posture after operation, generally in two states of lying or sitting, the nursing staff can adjust the posture, the times of posture adjustment by the nursing staff are limited, most of the existing nursing wheelchairs can only adjust the angle of the backrest in a small range when in use, and the nursing wheelchairs are not suitable for the scene because the nursing wheelchairs can be turned backwards due to overlarge adjustment angles;
the nursing wheelchair in the prior art also has a part of the nursing wheelchair which can be completely laid down, but most of the nursing wheelchair is a non-electric driving mechanical mechanism which needs the assistance of a nursing staff to adjust, and although a postoperative patient can hardly operate by himself, the patient hopes to adjust the posture of the patient by himself in the rehabilitation process instead of being assisted by others, and the nursing wheelchair in the prior art hardly realizes the function, so the invention designs an adjustable nursing chair which can help the patient to adjust the posture of the patient by himself in various ways in the postoperative rehabilitation process.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an adjustable nursing chair for postoperative rehabilitation nursing.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a nursing chair with adjustable postoperative rehabilitation nursing, includes back, chair frame and handrail, chair frame top is fixed with the cushion, and all welds the handrail in chair frame top both sides, chair frame one end top rotates and is connected with the leg rest subassembly that can electric control angle, the back is installed at chair frame other end top, and chair frame bottom is provided with the drive unit, connect by the rotary mechanism who is used for adjusting back angle between back and the chair frame, rotary mechanism is close to leg rest subassembly one end and is connected with the drive mechanism who is used for transmitting drive unit power, chair frame is close to leg rest subassembly one end bottom symmetry and is connected with the universal front wheel, chair frame other end bottom symmetry is installed and is driven the rear wheel, drive the rear wheel and the chair frame between through the slide mechanism of adjustable universal front wheel and drive rear wheel distance connection, pass through two chain transmission power between slide mechanism and the drive mechanism, and one of them handrail one end is fixed with the controller that is used for adjusting nursing chair state, the controller electricity is connected in leg rest subassembly and drive rear wheel, just the inside the frame is provided with the electric energy that is used for providing the battery;
the chair frame comprises two side underframes arranged on the side edges of the chair frame and a rear underframe below the rotating mechanism;
the sliding mechanism comprises sliding columns, a first worm assembly, a second worm assembly, sliding teeth, a transmission groove and a fixed block, wherein the two sliding columns are respectively and slidably inserted into the side underframe, the sliding teeth are respectively formed in the adjacent side walls of the two sliding columns, the transmission groove is respectively formed in the adjacent side walls of the side underframe, the fixed block is fixed at one end of the transmission groove away from the rear underframe, the first worm assembly and the second worm assembly are respectively connected between the fixed block and the rear underframe, the first worm assembly and the second worm assembly are respectively connected with the transmission mechanism through two chains, the first worm assembly and the second worm assembly are respectively connected with the sliding columns through the sliding teeth in a transmission manner, and the two sliding columns are respectively and fixedly connected with two driving rear wheels.
Preferably, the first worm assembly and the second worm assembly are arranged in a central symmetry manner, the first worm assembly and the second worm assembly comprise a first sprocket, a first worm and a transmission shaft, two ends of the transmission shaft are respectively connected with the fixed block and the rear chassis in a rotating manner, a first sprocket and the first worm are sequentially fixed on the side wall of the transmission shaft of the first worm assembly, and a first worm and a first sprocket are sequentially fixed on the side wall of the transmission shaft of the second worm assembly.
Preferably, the driving unit comprises a driving motor, an output shaft of the driving motor is connected to the transmission mechanism, and the driving motor is electrically connected to the controller.
Preferably, the transmission mechanism comprises a second sprocket, a transmission column and a third sprocket, one end of the transmission column is fixedly connected with the output shaft of the driving motor, the other end of the transmission column is connected with the rotating mechanism, the second sprocket and the third sprocket are sequentially fixed on the side wall of the transmission column, the second sprocket is connected with the first sprocket of the first worm assembly through a chain, and the third sprocket is connected with the first sprocket of the second worm assembly through a chain.
Preferably, the chair frame further comprises two fixed plates fixed below the backrest, the rotating mechanism comprises a rotating block, a rotating shaft, rotating teeth, a second worm and a speed reducer, the speed reducer is fixed on the outer side wall of the fixed plate close to the transmission mechanism, one end of the speed reducer is connected to the transmission column, the other end of the speed reducer is connected with the second worm, the second worm is rotationally connected between the two fixed plates, the rotating shaft is arranged above the second worm, the rotating shaft is rotationally connected to the chair frame, the rotating block is fixed in the middle of the rotating shaft, the rotating teeth are arranged at the bottom of the rotating block, and the rotating teeth are meshed with the second worm.
Preferably, the leg support assembly comprises a leg supporting plate, a connecting shaft, an electric telescopic rod, a sliding chute frame and a sliding column, wherein the connecting shaft is rotationally connected to one side of the top of the chair frame, the leg supporting plate is fixed to one side of the connecting shaft, the sliding chute frame is fixed to the side wall of the bottom of the leg supporting plate, the sliding column is slidably connected to the inside of the sliding chute frame, the electric telescopic rod is fixed to the top of the chair frame, the telescopic end of the electric telescopic rod is fixedly connected to the sliding column, and the electric telescopic rod is electrically connected to the controller.
Preferably, the driving unit further comprises a crank fixedly connected to the second worm.
Preferably, the speed reducer can realize bidirectional power transmission.
Preferably, the controller is internally provided with a leg supporting plate angle adjusting button which can control the electric telescopic rod to work independently, the controller is internally provided with a backrest angle adjusting button which can control the driving motor to work independently, and the controller is internally provided with a one-key lying flat button which can simultaneously control the electric telescopic rod and the driving motor to work in a matched mode.
Preferably, the top of the backrest is provided with a rotary handle, a protective bracket is arranged outside the chain, the protective bracket is fixedly connected to the chair frame, and two auxiliary belts are fixed on the side wall of the backrest, which is close to the armrests.
The invention has the beneficial effects that:
(1) According to the adjustable nursing chair for postoperative rehabilitation nursing, the sliding mechanism is adopted, power is transmitted through the chain and drives the first chain wheels of the first worm assembly and the second worm assembly which are connected with the sliding mechanism to rotate, the first worm is driven by the first chain wheels of the first worm assembly and the second worm assembly to rotate through the transmission shaft, the sliding column is pushed to slide along the side underframe through the sliding teeth meshed with the sliding column to push the rear wheel to rotate, so that the distance between the rear wheel and the universal front wheel is driven to be far or near, the inclination is prevented due to the fact that the adjustment angle of the backrest is adapted, the adjustment angle of the backrest is not limited, and the condition that the nursing chair is turned backwards due to the fact that the adjustment angle is too large is avoided.
(2) The adjustable nursing chair for postoperative rehabilitation nursing adopts the electric cooperation of the transmission mechanism and the rotating mechanism, the driving motor is controlled to rotate through the controller, the output shaft of the driving motor rotates to drive the transmission column to rotate, the transmission column drives the second worm to rotate through the speed reducer, the rotating speed of the second worm is slower, the rotating block is driven to rotate slowly through the meshing rotating teeth of the second worm, the rotating block drives the backrest to rotate gradually to adjust the angle, the worm wheel principle is adopted, the worm wheel and the worm have self-locking property and high transmission stability, so the backrest is adjusted smoothly and comfortably, the aim of helping a patient to adjust the posture of the patient by himself is fulfilled, and postoperative rehabilitation of the patient is facilitated.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the overall structure of an adjustable nursing chair for postoperative rehabilitation nursing according to the present invention;
fig. 2 is a schematic diagram of the overall structure of an adjustable nursing chair for postoperative rehabilitation nursing according to the present invention;
FIG. 3 is an enlarged view at A of FIG. 2;
FIG. 4 is a partial sectional view of an adjustable nursing chair for postoperative rehabilitation nursing provided by the invention;
FIG. 5 is an enlarged view at B of FIG. 4;
fig. 6 is a schematic diagram III of the overall structure of an adjustable nursing chair for postoperative rehabilitation nursing provided by the invention;
fig. 7 is a schematic view of a part of the sliding mechanism and the rotating mechanism of the adjustable nursing chair for postoperative rehabilitation nursing provided by the invention;
FIG. 8 is an enlarged view at C of FIG. 7;
fig. 9 is a schematic view of a part of a rotating mechanism of an adjustable nursing chair for postoperative rehabilitation nursing provided by the invention;
fig. 10 is a schematic view of a part of the sliding mechanism and the transmission mechanism of the adjustable nursing chair for postoperative rehabilitation nursing provided by the invention;
FIG. 11 is a schematic diagram of a leg rest assembly of an adjustable nursing chair for postoperative rehabilitation nursing provided by the invention;
fig. 12 is a schematic view of a rotating handle structure of an adjustable nursing chair for postoperative rehabilitation nursing provided by the invention.
In the figure: 1. a backrest; 2. a chair frame; 21. a fixing plate; 24. a side chassis; 25. a rear chassis; 3. an armrest; 4. a leg rest assembly; 41. a leg rest; 42. a connecting shaft; 43. an electric telescopic rod; 44. a chute frame; 45. a spool; 5. a chain; 6. a sliding mechanism; 61. a sliding column; 62. a first worm assembly; 621. a first sprocket; 622. a first worm; 623. a transmission shaft; 63. a second worm assembly; 64. sliding teeth; 65. a transmission groove; 66. a fixed block; 7. a rotating mechanism; 71. a rotating block; 72. a rotating shaft; 73. rotating the teeth; 74. a second worm; 75. a speed reducer; 8. a transmission mechanism; 81. a second sprocket; 82. a drive column; 83. a third sprocket; 9. rotating the handle; 91. rotating the handle; 92. a rotating shaft; 93. rotating the latch; 94. a return spring; 95. fixing the latch; 96. a rotating groove; 10. an auxiliary belt; 11. a driving motor; 12. a controller; 13. driving a rear wheel; 14. a universal front wheel; 15. a protective bracket; 16. a crank; 17. and (5) a cushion.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1:
as shown in fig. 1-11, an adjustable nursing chair for postoperative rehabilitation nursing comprises a backrest 1, a chair frame 2 and armrests 3, wherein a cushion 17 is fixed above the chair frame 2, armrests 3 are welded on two sides above the chair frame 2, a leg support assembly 4 capable of electrically adjusting an angle is rotatably connected to the top of one end of the chair frame 2, the backrest 1 is installed on the top of the other end of the chair frame 2, a driving unit is arranged at the bottom of the chair frame 2, the backrest 1 and the chair frame 2 are connected through a rotating mechanism 7 for adjusting the angle of the backrest 1, one end, close to the leg support assembly 4, of the rotating mechanism 7 is connected with a transmission mechanism 8 for transmitting power of the driving unit, the bottom, close to one end, of the leg support assembly 4, of the chair frame 2 is symmetrically connected with universal front wheels 14, a driving rear wheel 13 is symmetrically installed at the bottom of the other end of the chair frame 2, a sliding mechanism 6 for adjusting the distance between the universal front wheels 14 and the driving rear wheels 13 is connected with the chair frame 2, power is transmitted between the sliding mechanism 6 and the transmission mechanism 8 through two chains 5, one end of each arm rest 3 is fixedly provided with a controller 12 for adjusting the nursing state, and the controller 12 is electrically connected with the leg support assembly 4 and the driving rear wheels 13 and is provided with an electric energy storage battery for driving the inside of the chair 2;
the battery is used for providing electric energy to the controller 12 and other mechanisms requiring electricity in the invention;
in the embodiment of the present invention, the rear wheel 13 is driven to realize the function of electrically controlling rotation by the self-powered motor, which is the mature prior art, and the protection scope of the present invention is not repeated;
the chair frame 2 comprises two side underframes 24 arranged on the side edges of the chair frame and a rear underframe 25 below the rotating mechanism 7, and is used for fixing a first worm assembly 62 and a second worm assembly 63;
as shown in fig. 2, 3, 7, 8 and 10, the sliding mechanism 6 includes a sliding column 61, a first worm assembly 62, a second worm assembly 63, sliding teeth 64, a transmission groove 65 and a fixed block 66, two sliding columns 61 are respectively inserted into the side underframe 24 in a sliding manner, the adjacent side walls of the two sliding columns 61 are respectively provided with the sliding teeth 64, the adjacent side walls of the side underframe 24 are respectively provided with the transmission groove 65, one end, away from the rear underframe 25, of the transmission groove 65 is fixed with the fixed block 66, the first worm assembly 62 and the second worm assembly 63 are respectively connected between the fixed block 66 and the rear underframe 25, the first worm assembly 62 and the second worm assembly 63 are respectively connected with the transmission mechanism 8 through two chains 5, the first worm assembly 62 and the second worm assembly 63 are respectively connected with the sliding columns 61 in a transmission manner through the sliding teeth 64, and the two sliding columns 61 are respectively fixedly connected with two driving rear wheels 13;
as shown in fig. 7, 8 and 10, the first worm assembly 62 and the second worm assembly 63 are arranged in a central symmetry manner, the first worm assembly 62 and the second worm assembly 63 each comprise a first sprocket 621, a first worm 622 and a transmission shaft 623, two ends of the transmission shaft 623 are respectively connected to the fixed block 66 and the rear chassis 25 in a rotating manner, a first sprocket 621 and a first worm 622 are sequentially fixed on the side wall of the transmission shaft 623 of the first worm assembly 62, and a first worm 622 and a first sprocket 621 are sequentially fixed on the side wall of the transmission shaft 623 of the second worm assembly 63;
in the embodiment of the invention, the transmission mechanism 8 transmits power through the chain 5 and drives the first sprocket 621 of the first worm assembly 62 and the second worm assembly 63 connected with the transmission mechanism to rotate, the first sprocket 621 of the first worm assembly 62 and the second worm assembly 63 drives the first worm 622 to rotate through the transmission shaft 623, the first worm 622 rotates to push the sliding column 61 to slide along the side underframe 24 through the sliding teeth 64 meshed with the first worm 622, and the sliding column 61 pushes the driving rear wheel 13 to rotate, so that the distance between the driving rear wheel 13 and the universal front wheel 14 is pulled far or near to adapt to the angle adjusted by the backrest 1 to prevent toppling.
As shown in fig. 2 and 4, the driving unit comprises a driving motor 11, an output shaft of the driving motor 11 is connected to the transmission mechanism 8, and the driving motor 11 is electrically connected to the controller 12, so that the angle of the backrest 1 is adjusted by the electric control through the driving motor 11, physical strength is saved, and the postoperative rehabilitation of a user is facilitated.
As shown in fig. 2, 4 and 10, the transmission mechanism 8 comprises a second sprocket 81, a transmission column 82 and a third sprocket 83, one end of the transmission column 82 is fixedly connected to the output shaft of the driving motor 11, the other end of the transmission column 82 is connected to the rotation mechanism 7, the second sprocket 81 and the third sprocket 83 are sequentially fixed on the side wall of the transmission column 82, the second sprocket 81 is connected to the first sprocket 621 of the first worm assembly 62 through a chain 5, and the third sprocket 83 is connected to the first sprocket 621 of the second worm assembly 63 through a chain 5;
as shown in fig. 2, 5, 6, 7, 9 and 10, the chair frame 2 further comprises two fixed plates 21 fixed below the backrest 1, the rotating mechanism 7 comprises a rotating block 71, a rotating shaft 72, rotating teeth 73, a second worm 74 and a speed reducer 75, the speed reducer 75 is fixed on the outer side wall of the fixed plate 21 close to the transmission mechanism 8, one end of the speed reducer 75 is connected with a transmission column 82, the other end of the speed reducer 75 is connected with the second worm 74, the second worm 74 is rotatably connected between the two fixed plates 21, the rotating shaft 72 is arranged above the second worm 74, the rotating shaft 72 is rotatably connected to the chair frame 2, the rotating block 71 is fixed in the middle of the rotating shaft 72, the rotating teeth 73 are arranged at the bottom of the rotating block 71, and the rotating teeth 73 are meshed with the second worm 74;
in the embodiment of the invention, the controller 12 can control the driving motor 11 to rotate positively, the output shaft of the driving motor 11 rotates positively to drive the transmission column 82 to rotate positively, the transmission column 82 drives the second worm 74 to rotate through the speed reducer 75, the rotation speed of the second worm 74 is slower, the rotation block 71 is driven to rotate slowly through the meshing of the rotation teeth 73, and the rotation block 71 drives the backrest 1 to rotate backwards gradually; the controller 12 controls the driving motor 11 to reversely rotate, so that the backrest 1 gradually rotates towards a user through the reverse transmission, and the adjustment of the backrest 1 is gentle and comfortable because the worm and gear principle is adopted, and the worm and gear has self-locking property and high transmission stability.
As shown in fig. 1 and 11, the leg rest assembly 4 comprises a leg support plate 41, a connecting shaft 42, an electric telescopic rod 43, a chute frame 44 and a slide column 45, wherein the connecting shaft 42 is rotatably connected to one side of the top of the chair frame 2, the leg support plate 41 is fixed on one side of the connecting shaft 42, the chute frame 44 is fixed on the side wall of the bottom of the leg support plate 41, the slide column 45 is slidably connected inside the chute frame 44, the electric telescopic rod 43 is fixed on the top of the chair frame 2, the telescopic end of the electric telescopic rod 43 is fixedly connected with the slide column 45, and the electric telescopic rod 43 is electrically connected with the controller 12;
in the embodiment of the present invention, the controller 12 may control the electric telescopic rod 43 to extend or shorten, the electric telescopic rod 43 extends, the telescopic end of the electric telescopic rod 43 drives the sliding column 45 to slide along the sliding chute frame 44 in a direction away from the nursing chair and push the leg support plate 41 to rotate upwards around the connecting shaft 42, the electric telescopic rod 43 shortens, the telescopic end of the electric telescopic rod 43 drives the sliding column 45 to slide along the sliding chute frame 44 in a direction close to the nursing chair and push the leg support plate 41 to rotate downwards around the connecting shaft 42, and the angle of the leg support plate 41 is adjusted in sequence, which is only one implementation manner for controlling the angle adjustment of the leg support plate 41, which can be clearly implemented by a person skilled in the art and is not repeated.
Specifically, the electric telescopic rod 43 can be controlled to work independently by the angle adjusting button of the leg supporting plate 41 arranged in the controller 12, the driving motor 11 can be controlled to work independently by the angle adjusting button of the backrest 1 arranged in the controller 12, and the electric telescopic rod 43 and the driving motor 11 can be controlled to work together by a flat button arranged in the controller 12, wherein the connection mode between each mechanism and the controller 12 is common prior art, and the invention does not make supplementary explanation and circuit connection diagram.
Specifically, the top of the backrest 1 is provided with a rotating handle 9 capable of manually adjusting the angle, as shown in fig. 12, in an embodiment of manually adjusting the angle of the rotating handle 9, the rotating handle 91 is pressed, the rotating handle 91 drives the rotating shaft 92 and the rotating latch 93 to slide towards the inside of the rotating groove 96, and the reset spring 94 is extruded, so that the rotating latch 93 is separated from the fixed latch 95 in the rotating groove 96, at the moment, the rotating handle 91 can be rotated to adjust the angle so as to adapt to the angle of the backrest 1 after rotating, the nursing chair is also convenient for a person to accompany, the protective bracket 15 is arranged outside the chain 5, the protective bracket 15 is fixedly connected to the chair frame 2, the protective bracket 15 can not only protect the chain 5, but also strengthen the supporting strength of the nursing chair, and a user can sleeve the two arms of the arm rest auxiliary belt 10 into the user to fix the two auxiliary belts 10 on the side walls of the backrest 1, which are close to the side walls of the backrest 3.
Example 2:
on the basis of embodiment 1, as shown in fig. 7 and 10, the speed reducer 75 can realize bidirectional power transmission;
the speed reducer 75 here serves to adjust the speed at which the backrest 1 rotates backward and the speed at which the rear wheel 13 is driven to move backward so that it can be synchronized to prevent the backrest 1 from rotating backward too fast, resulting in the occurrence of a backward toppling of the nursing chair.
The drive unit further includes a crank 16, the crank 16 being fixedly connected to the second worm 74;
when the electric quantity of the storage battery is small or no electricity is generated, the second worm 74 can be driven by rotating the crank 16, and the second worm 74 drives the transmission mechanism 8 through the speed reducer 75 to transmit power to the sliding mechanism 6, so that the angle of the backrest 1 can be adjusted manually under the condition of no electricity.
Working principle:
(1) Leg rest 41 angular adjustment: when a user needs to independently adjust the leg angle, the controller 12 controls the electric telescopic rod 43 to independently operate to extend or shorten by pressing the angle adjusting button of the leg supporting plate 41 on the controller 12, the electric telescopic rod 43 extends, the telescopic end of the electric telescopic rod 43 drives the sliding column 45 to slide along the sliding chute frame 44 in a direction away from the nursing chair and push the leg supporting plate 41 to rotate upwards around the connecting shaft 42, the electric telescopic rod 43 shortens, the telescopic end of the electric telescopic rod 43 drives the sliding column 45 to slide along the sliding chute frame 44 in a direction close to the nursing chair and push the leg supporting plate 41 to rotate downwards around the connecting shaft 42, and the angle of the leg supporting plate 41 is adjusted sequentially, so that most of the prior art can be clearly implemented and will not be repeated;
(2) Back 1 angle adjustment: when the user needs to independently adjust the waist angle, the user needs to press the angle adjusting button of the backrest 1 on the controller 12; the controller 12 controls the driving motor 11 to rotate forward, the driving motor 11 rotates the driving post 82 forward, the driving post 82 drives the second sprocket 81 and the third sprocket 83 to drive the first sprocket 621 of the first worm assembly 62 and the second worm assembly 63 connected with the driving post 82 through the chain 5 to rotate, the first worm assembly 62 and the first sprocket 621 of the second worm assembly 63 drive the first worm 622 to rotate through the driving shaft 623, the first worm 622 rotates to push the sliding post 61 to slide to the outside of the side underframe 24 through the sliding teeth 64 meshed with the first worm 622, the sliding post 61 pushes the driving rear wheel 13 to rotate backward, so that the distance between the driving rear wheel 13 and the universal front wheel 14 is prolonged, meanwhile, the driving post 82 drives the second worm 74 to rotate through the speed reducer 75, at the moment, the rotating speed of the second worm 74 is slower, the rotating block 71 is slowly driven to rotate through the meshing rotating teeth 73, the rotating block 71 drives the backrest 1 to rotate backward gradually, and the speed of the speed reducer 75 adjusts the backward rotating speed of the backrest 1 and the backward driving rear wheel 13 to slide to the outside through the sliding teeth 64 meshed with the sliding post 61, so that the backward rotation of the backrest 1 can be prevented from tilting backward, and the nursing chair can be prevented; the controller 12 controls the driving motor 11 to reversely rotate, so that the backrest 1 gradually rotates towards a user through the reverse transmission, and the worm and gear principle is adopted, so that the adjustment of the backrest is gentle and comfortable due to the self-locking property of the worm and gear and the higher transmission stability; when the electric quantity of the storage battery is small or no electricity is generated, the second worm 74 can be driven by rotating the crank handle 16, the second worm 74 drives the transmission mechanism 8 through the speed reducer 75 to transmit power to the sliding mechanism 6, so that the angle of the backrest 1 can be adjusted manually under the condition of no electricity;
(3) One-key lying function: when a user needs to lie, he needs to press a one-key lying flat button on the controller 12, then the controller 12 simultaneously controls the electric telescopic rod 43 and the driving motor 11 to work together, the controller 12 can synchronously adjust the angle of the leg supporting plate 41 to slowly move upwards and the angle of the backrest 1 to slowly move downwards, and the distance between the driving rear wheel 13 and the universal front wheel 14 is gradually pulled away, so that the nursing chair is prevented from tilting backwards.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a nursing chair with adjustable postoperative rehabilitation nursing, includes back (1), chair frame (2) and handrail (3), its characterized in that: the utility model discloses a nursing chair, including chair frame (2) and chair frame (2), seat cushion (17) are fixed with above chair frame (2), and all weld handrail (3) above chair frame (2) both sides, chair frame (2) one end top rotates and is connected with leg rest subassembly (4) that can electric control angle, back (1) are installed at chair frame (2) other end top, and chair frame (2) bottom is provided with drive unit, be connected by rotary mechanism (7) that are used for adjusting back (1) angle between back (1) and chair frame (2), rotary mechanism (7) are close to leg rest subassembly (4) one end and are connected with drive mechanism (8) that are used for transmitting drive unit power, chair frame (2) are close to leg rest subassembly (4) one end bottom symmetry and are connected with universal front wheel (14), chair frame (2) other end bottom symmetry is installed and is driven rear wheel (13), be connected through sliding mechanism (6) of adjustable distance between universal front wheel (14) and the drive rear wheel (13) between back (2), sliding mechanism (6) and one of them are connected with power controller (12) through two power transmission (12) and one of them are connected with one of them power controller (12), the storage battery for supplying electric energy is arranged in the chair frame (2);
the chair frame (2) comprises two side underframes (24) arranged on the side edges of the chair frame and a rear underframe (25) below the rotating mechanism (7);
the sliding mechanism (6) comprises sliding columns (61), a first worm assembly (62), a second worm assembly (63), sliding teeth (64), a transmission groove (65) and a fixed block (66), wherein the two sliding columns (61) are respectively connected to the inside of the side underframe (24) in a sliding manner, the sliding teeth (64) are respectively formed in the adjacent side walls of the two sliding columns (61), the transmission groove (65) is formed in the adjacent side walls of the side underframe (24), the fixed block (66) is fixed at one end, far away from the rear underframe (25), of the transmission groove (65), the first worm assembly (62) and the second worm assembly (63) are respectively connected between the fixed block (66) and the rear underframe (25), the first worm assembly (62) and the second worm assembly (63) are respectively connected to the transmission mechanism (8) through two chains (5), the first worm assembly (62) and the second worm assembly (63) are respectively connected with the sliding columns (61) in a transmission manner through the sliding teeth (64), and the two sliding columns (61) are respectively fixedly connected to two rear driving wheels (13);
the utility model discloses a worm assembly, including first worm subassembly (62) and second worm subassembly (63), first worm subassembly (62) and second worm subassembly (63) are central symmetry and set up, first worm subassembly (62) and second worm subassembly (63) all include first sprocket (621), first worm (622) and transmission shaft (623), rotation respectively in fixed block (66) and back chassis (25) are connected at transmission shaft (623) both ends, transmission shaft (623) lateral wall of first worm subassembly (62) is fixed with first sprocket (621) and first worm (622) in proper order, transmission shaft (623) lateral wall of second worm subassembly (63) is fixed with first worm (622) and first sprocket (621) in proper order.
2. An adjustable nursing chair for postoperative rehabilitation nursing according to claim 1, characterized in that: the driving unit comprises a driving motor (11), an output shaft of the driving motor (11) is connected to the transmission mechanism (8), and the driving motor (11) is electrically connected to the controller (12).
3. An adjustable nursing chair for postoperative rehabilitation nursing according to claim 2, characterized in that: the transmission mechanism (8) comprises a second sprocket (81), a transmission column (82) and a third sprocket (83), one end of the transmission column (82) is fixedly connected with an output shaft of the driving motor (11), the other end of the transmission column (82) is connected with the rotating mechanism (7), the second sprocket (81) and the third sprocket (83) are sequentially fixed on the side wall of the transmission column (82), the second sprocket (81) is connected with a first sprocket (621) of the first worm assembly (62) through a chain (5), and the third sprocket (83) is connected with a first sprocket (621) of the second worm assembly (63) through the chain (5).
4. An adjustable nursing chair for postoperative rehabilitation nursing according to claim 3, wherein: the chair comprises a chair frame (2), and is characterized in that the chair frame (2) further comprises two fixed plates (21) fixed below the backrest (1), the rotating mechanism (7) comprises a rotating block (71), a rotating shaft (72), rotating teeth (73), a second worm (74) and a speed reducer (75), the speed reducer (75) is fixed on the outer side wall of the fixed plate (21) close to a transmission mechanism (8), one end of the speed reducer (75) is connected to a transmission column (82), the other end of the speed reducer (75) is connected with the second worm (74), the second worm (74) is rotationally connected between the two fixed plates (21), a rotating shaft (72) is arranged above the second worm (74), the rotating shaft (72) is rotationally connected to the chair frame (2), the rotating block (71) is fixed in the middle of the rotating shaft (72), the rotating teeth (73) are formed in the bottom of the rotating block (71), and the rotating teeth (73) are meshed with the second worm (74).
5. An adjustable nursing chair for postoperative rehabilitation nursing according to any one of claims 1-4, characterized in that: leg holds in palm subassembly (4) including leg layer board (41), connecting axle (42), electric telescopic handle (43), spout frame (44) and traveller (45), connecting axle (42) rotate and connect in chair frame (2) top one side, and connecting axle (42) one side is fixed with leg layer board (41), leg layer board (41) bottom lateral wall is fixed with spout frame (44), inside sliding connection of spout frame (44) has traveller (45), electric telescopic handle (43) are fixed in chair frame (2) top, electric telescopic handle (43) telescopic end fixed connection is in traveller (45), electric telescopic handle (43) electricity is connected in controller (12).
6. The adjustable nursing chair for postoperative rehabilitation nursing according to claim 4, wherein: the drive unit further comprises a crank (16), the crank (16) being fixedly connected to the second worm (74).
7. The adjustable nursing chair for postoperative rehabilitation nursing according to claim 6, wherein: the speed reducer (75) can realize bidirectional power transmission.
8. The adjustable nursing chair for postoperative rehabilitation nursing according to claim 5, wherein: the electric telescopic rod (43) can be controlled by the angle adjusting button of the leg supporting plate (41) to work independently in the controller (12), the driving motor (11) can be controlled by the angle adjusting button of the backrest (1) to work independently in the controller (12), and the electric telescopic rod (43) and the driving motor (11) can be controlled to work cooperatively by a lying button in one key in the controller (12).
9. The adjustable nursing chair for postoperative rehabilitation nursing according to claim 8, wherein: the utility model discloses a chair, including back (1), chain (5), back (1), protection support (15) are installed to be provided with rotation handle (9) at top, just chain (5) externally mounted has protection support (15), protection support (15) fixed connection is in chair frame (2), back (1) is close to the lateral wall of handrail (3) and is fixed with two auxiliary belt (10).
CN202310595619.0A 2023-05-25 2023-05-25 Nursing chair with adjustable postoperative rehabilitation nursing is used Active CN116327500B (en)

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FR3005852B1 (en) * 2013-05-23 2016-09-02 Rupiani WHEELCHAIR FOR DISABLED OR DISABLED WITH ADJUSTABLE CHASSIS PLATE
EP3137033B1 (en) * 2014-04-29 2018-05-30 Reac Ab Powered wheelchair
CN105640719B (en) * 2016-03-15 2017-05-24 哈尔滨工程大学 Multifunctional wheelchair capable of assisting patient to get in or out of bed and go to toilet
CN210903721U (en) * 2019-07-25 2020-07-03 洪辉 Wheel chair
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Publication number Priority date Publication date Assignee Title
TW573531U (en) * 2001-12-25 2004-01-21 Lloyd Linden Inc Structure of adjustable wheelchair
KR101047342B1 (en) * 2011-03-04 2011-07-07 미키코리아(주) Electric wheelchair
EP3597163A1 (en) * 2018-07-19 2020-01-22 Permobil AB Mobility device
CN113662764A (en) * 2021-08-26 2021-11-19 西安理工大学 Novel multifunctional wheelchair

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