CN111513944B - Intelligent nursing wheelchair with adjustable temperature and angle for rehabilitation of postoperative patient - Google Patents

Intelligent nursing wheelchair with adjustable temperature and angle for rehabilitation of postoperative patient Download PDF

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Publication number
CN111513944B
CN111513944B CN202010388841.XA CN202010388841A CN111513944B CN 111513944 B CN111513944 B CN 111513944B CN 202010388841 A CN202010388841 A CN 202010388841A CN 111513944 B CN111513944 B CN 111513944B
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temperature
fixed
intelligent
adjusting
telescopic
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CN202010388841.XA
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Chinese (zh)
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CN111513944A (en
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贾挺挺
李唯莉
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Ningbo Beilun Peoples Hospital
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Ningbo Beilun Peoples Hospital
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • A61G5/1045—Cushions specially adapted for wheelchairs for the seat portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • A61G5/1048—Cushions specially adapted for wheelchairs for the back-rest
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1051—Arrangements for steering
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1091—Cushions, seats or abduction devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/127—Rests specially adapted therefor, e.g. for the head or the feet for lower legs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
    • A61H39/04—Devices for pressing such points, e.g. Shiatsu or Acupressure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002—Generators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/12—Remote controls
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0119—Support for the device
    • A61H2201/0138—Support for the device incorporated in furniture
    • A61H2201/0149—Seat or chair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/12—Feet
    • A61H2205/125—Foot reflex zones

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Tools (AREA)

Abstract

The invention provides an intelligent nursing wheelchair capable of adjusting temperature and angle for postoperative patient rehabilitation, which comprises: the frame body, handrail frame, seatpad, back of the body pad, action wheel, follow driving wheel and shank rack. The middle part of the fixed bracket connecting the handrail and the seat board is provided with a telescopic device; the wheelchair comprises a wheelchair body, and is characterized by further comprising an intelligent temperature adjusting module for automatically adjusting the temperature of the wheelchair, an intelligent angle adjusting module for controlling and adjusting the inclination angle of a backup plate, an energy conversion device for converting heat energy into electric energy, and a telescopic adjusting device for controlling and adjusting the length of the leg placing frame. The wheelchair is an intelligent patient nursing and walking-replacing tool with excellent performance, has the functions of automatically adjusting the temperature, supplying power to the storage battery, remotely adjusting the angle of the chair back and the like, is safer and more reliable and is easy to operate compared with the traditional wheelchair, can meet the requirements of some weak groups such as the old, the disabled and the like, and improves the life quality of the old, the disabled and the like.

Description

Intelligent nursing wheelchair with adjustable temperature and angle for rehabilitation of postoperative patient
Technical Field
The invention relates to a nursing wheelchair used in the medical field, in particular to an intelligent temperature-adjusting nursing wheelchair.
Background
As an important moving tool for home nursing rehabilitation, turnover transportation, treatment and outgoing activities of patients and disabled people, the wheelchair not only meets the requirements of physically disabled people and mobility-handicapped people for riding instead of walk, but also is more important to facilitate the family members to move and take care of the patients, and when the medical care personnel nurse the patients, the nursing wheelchair is often needed. Most of the current uses are traditional nursing wheelchairs.
This team relies on hospital's resource, carries out rehabilitation and therapeutic instrument's research for a long time to prior art that discovery exists like CN110236806A, TWM569222U, TWI669108B through a large amount of retrieval, generally all possesses the bedplate, the both sides outer wall of bedplate all is equipped with the protection casing, and the bottom outer wall of protection casing opens there is the opening, and the protection casing is semi-circular structure, the both sides of bedplate bottom outer wall all are equipped with the mount, and one side outer wall of mount is opened there is the through-hole, and the inner wall of two through-holes is fixed with same connecting axle through the bearing, the both sides of connecting axle all are fixed with the wheel through the bearing, and wheel axis position is connected with through the pivot and holds up the driving wheel. Nursing wheelchair among the prior art is more single in function, can not adjust arbitrary angle of adjustment according to patient's needs, can not provide suitable temperature according to patient's body temperature, and many older and have some designs that are no longer suitable for moreover, and its comfort level and angle can not satisfy patient's needs, do not utilize patient's recovery, and current electron wheelchair structure is generally comparatively complicated, and the operation is inconvenient, can not by extensive application and popularization.
In order to solve the problem that the angle of the chair back of the wheelchair can not be controlled by a user through a controller in the field; the wheelchair can not sense the user and automatically adjust the temperature according to the body temperature of the user; the invention can not solve the problems of electricity consumption of the intelligent wheelchair and the like.
Disclosure of Invention
The invention aims to provide an intelligent wheelchair which is more convenient to operate and more power-saving to use, aiming at the defects of the existing nursing wheelchair, and can effectively enhance the comfort of patients, old people and disabled people.
In order to overcome the defects of the prior art, the invention adopts the following technical scheme:
a post-operative patient rehabilitation temperature angle adjustable smart care wheelchair, comprising: the leg support comprises a support body, a seat cushion, a back cushion, driving wheels, driven wheels and leg placing frames, wherein rotating shafts of the two driving wheels are respectively fixed on two sides of the support body, the two driven wheels matched with the driving wheels are also respectively fixed on two sides of the support body, and the back cushion is matched with the seat cushion; the armrest of the frame body is fixedly connected with the backup plate, the backup plate can be connected with the seat plate in a turnover mode through the rotating shaft, and the seat plate is fixed; the handrail and the seat board are connected with a fixed support through a movable connecting piece, one end of the fixed support is movably connected with the seat board, and the other end of the fixed support is movably connected with the handrail; the intelligent nursing wheelchair is further provided with an intelligent module, wherein the intelligent module comprises an intelligent temperature adjusting module for automatically adjusting the temperature of the wheelchair, an intelligent angle adjusting module for controlling and adjusting the inclination angle of the backup plate, a telescopic adjusting device for controlling and adjusting the length of the leg placing frame and an energy conversion device for converting heat energy into electric energy.
Optionally, a spiral telescopic device is installed on the fixing support close to the handrail part, and the handrail is enabled to tilt through telescopic deformation of the fixing support, so that the tilt angle of the backup plate is changed.
Optionally, a foot supporting pad is fixed between the two leg placing frames, and a plurality of massage protrusions are further arranged on the foot supporting pad; and an adjustable spring expansion device is arranged in the middle of the leg placing frame.
Optionally, the temperature intelligent adjusting module includes: the temperature adjusting device, the temperature sensing device, the pressure sensing device and the control device are respectively arranged on the backup plate and the seat plate, and the pressure sensing device is arranged on a seat cushion of the seat plate.
Optionally, the energy conversion device includes: the heat conduction sheet is laid on the seat cushion and the back cushion, and the energy conversion equipment is connected to the heat conduction sheet and converts heat energy into electric energy; the energy conversion device transmits the electric energy to a storage battery.
Optionally, the temperature intelligent adjusting module and the angle intelligent adjusting module are powered by the storage battery.
The beneficial effects obtained by the invention are as follows:
1. converting the heat energy of the seat cushion and the back cushion into electric energy to charge the storage battery;
2. the inclination angle of the backup plate can be adjusted through a remote controller;
3. when a person is in the intelligent nursing wheelchair, the wheelchair is automatically opened to adjust the temperature according to the body temperature of the person in the chair; when no person is in use, the temperature adjusting system automatically enters a sleep mode;
4. the length of the foot placing frame can be controlled by the controller in a telescopic way.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a schematic structural diagram of the intelligent nursing wheelchair of the invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is an enlarged view of a portion of fig. 1 at B.
Fig. 4 is a block diagram of the temperature intelligence module of the present invention.
Fig. 5 is an enlarged view of a portion of C of fig. 1.
Fig. 6 is a view showing the internal structure of the inner slide.
The reference numbers illustrate: 1-a frame body; 2-backing up; 3, cushion; 4-a foot support pad; 5-driven wheel; 6-driving wheel; 7-a spiral expansion device; 8-backing plate; 9-fixing a bracket; 10-a seat board; 11-a rotating shaft; 12-a movable connection; 13-a handrail; 14-a helical rod; 15-a clamping plate; 16-a telescopic sleeve; 17-a first fixed outer frame; 18-a second fixed outer frame; 19-a telescopic cavity; 20-a rotating device; 21-a storage battery; 22-a receiver; 23-a switch; 24-a wire; 25-a telescoping spring; 26-a guide rod; 27-an outer frame; 28-inner slide block; 29-a detent device; 30-a sliding groove; 31-leg rest, 32-shape memory alloy spring, 33-first rest position, 34-second rest position.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the embodiments thereof; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description below.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the term "upper" - "lower" - "left" - "right", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but not to indicate or imply that the device or component referred to must have a specific orientation.
The first embodiment is as follows:
in the embodiment, the intelligent nursing wheelchair capable of converting the body temperature of the user into electric energy is constructed, and the intelligent nursing wheelchair can convert the heat energy on the backup plate and the seat cushion into the electric energy and charge the storage battery;
in this example, the smart care wheelchair comprises: the leg support comprises a support body, a seat cushion, a back cushion, driving wheels, driven wheels and leg placement frames, wherein rotating shafts of the two driving wheels are respectively fixed on two sides of the support body; the armrest of the frame body is fixedly connected with the backup plate, the backup plate can be connected with the seat plate in a turnover mode through the rotating shaft, and the seat plate is fixed; the handrail and the seat board are connected with a fixed support through a movable connecting piece, one end of the fixed support is movably connected with the seat board, and the other end of the fixed support is movably connected with the handrail; the intelligent nursing wheelchair is also provided with an intelligent module, and the intelligent module comprises an intelligent temperature adjusting module for automatically adjusting the temperature of the wheelchair, an intelligent angle adjusting module for controlling and adjusting the inclination angle of the backup plate, a telescopic adjusting device for controlling and adjusting the length of the leg placing frame and an energy conversion device for converting heat energy into electric energy; the part, close to the handrail, of the fixed support is provided with a spiral telescopic device, and the handrail is enabled to tilt through telescopic deformation of the fixed support so as to change the inclination angle of the backup plate; a foot supporting pad is fixed between the two leg placing frames, and a plurality of massage bulges are further arranged on the foot supporting pad; and the middle part of the leg placing frame is provided with an adjustable spring expansion device; the temperature intelligent regulation module comprises: the temperature adjusting device, the temperature sensing device, the pressure sensing device and the control device are respectively arranged on the backup plate and the seat plate;
in addition, a plurality of heat conducting sheets are uniformly laid on the back cushion and the seat cushion, the heat conducting sheets convey heat on the back cushion and the seat cushion to energy conversion equipment, the energy conversion equipment converts the heat energy into electric energy and conveys the electric energy to a storage battery to charge the storage battery, and the temperature intelligent adjusting module and the angle intelligent adjusting module are powered by the storage battery.
Example two:
in the embodiment, the intelligent nursing wheelchair capable of converting the body temperature of the user into electric energy is constructed, and the intelligent nursing wheelchair can convert the heat energy on the backup plate and the seat cushion into the electric energy and charge the storage battery;
in this example, the smart care wheelchair comprises: the leg support comprises a support body, a seat cushion, a back cushion, driving wheels, driven wheels and leg placing frames, wherein rotating shafts of the two driving wheels are respectively fixed on two sides of the support body, the two driven wheels matched with the driving wheels are also respectively fixed on two sides of the support body, and the back cushion is matched with the seat cushion; the armrest of the frame body is fixedly connected with the backup plate, the backup plate can be connected with the seat plate in a turnover way through the rotating shaft, and the seat plate is fixed; the handrail and the seat board are connected with a fixed support through movable connecting pieces, one end of the fixed support is movably connected with the seat board, and the other end of the fixed support is movably connected with the handrail; the intelligent nursing wheelchair is also provided with an intelligent module, and the intelligent module comprises an intelligent temperature adjusting module for automatically adjusting the temperature of the wheelchair, an intelligent angle adjusting module for controlling and adjusting the inclination angle of the backup plate, a telescopic adjusting device for controlling and adjusting the length of the leg placing frame and an energy conversion device for converting heat energy into electric energy; a spiral telescopic device is arranged on the part, close to the handrail, of the fixed support, and the handrail is enabled to move in an inclined mode through telescopic deformation of the fixed support, so that the inclination angle of the backup plate is changed; a foot supporting pad is fixed between the two leg placing frames, and a plurality of massage bulges are arranged on the foot supporting pad; and the middle part of the leg placing frame is provided with an adjustable spring expansion device; the temperature intelligent regulation module comprises: the temperature adjusting device, the temperature sensing device, the pressure sensing device and the control device are respectively arranged on the backup plate and the seat plate;
in addition, a plurality of heat conducting fins are uniformly laid on the back cushion and the seat cushion, the heat conducting fins convey heat on the back cushion and the seat cushion to energy conversion equipment, the energy conversion equipment converts the heat energy into electric energy and conveys the electric energy to a storage battery to charge the storage battery, and the temperature intelligent adjusting module and the angle intelligent adjusting module are powered by the storage battery;
referring to fig. 2 and 3, the backup plate is fixedly connected with the handrail, the joint of the backup plate and the handrail is hinged on the seat plate in a turnover way on a turnover shaft 11, and a spiral expansion device 7 is arranged at one side close to the connection of the fixed frame and the handrail;
in this example, one end of the fixed frame is movably connected with the seat board, the other end of the fixed frame is movably connected with the armrest, a spiral expansion device is installed on the fixed frame near the armrest part, when the spiral expansion device expands, the front end of the armrest rises, the armrest drives the backup plate to back incline, when the spiral expansion device contracts, the front end of the armrest lowers, and the backup plate tilts forward;
in addition, the spiral expansion device comprises a first fixed outer frame 17 and a second fixed outer frame 18 which are connected with a fixed frame, a telescopic cavity 19 which is matched with the second fixed outer frame is arranged in the first fixed outer frame, the second fixed outer frame is positioned in the telescopic cavity and is in sliding connection with the inner wall of the first fixed outer frame, a rotating device 20 is arranged on the bottom surface of the telescopic cavity, the second fixed outer frame is of a hollow structure, a telescopic sleeve 16 is arranged at the bottom end of the second fixed outer frame, a spiral rod 14 is in threaded connection with the center of the telescopic sleeve, the output end of the rotating device is connected with the bottom end of the spiral rod, the rotating device is electrically connected with a controller, the cross section of the second fixed outer frame is matched with that of the telescopic cavity, and clamping plates 15 are arranged at the upper part and the bottom part of the spiral rod, the distance between the two clamping plates is the maximum movable distance of the height of the swivel chair, the rotation direction and the working state of the rotating device can be controlled by operating the controller, when the controller is operated to enable the rotating device to rotate forwards, the spiral rod is driven to rotate forwards, meanwhile, the telescopic sleeve in threaded connection with the spiral rod cannot rotate and can only move along the axial direction of the spiral rod, the second fixed outer frame is driven to move upwards at the same time, the armrest connected with the second fixed outer frame is driven to move upwards so as to adjust the height of the armrest, and the angle of the backup plate is adjusted at the same time, similarly, when the controller is operated to enable the rotating device to rotate backwards, the second fixed outer frame drives the armrest to move downwards slowly, and the height of the armrest can be adjusted through the rotation direction of the rotating device, meanwhile, the angle of the backup plate is adjusted, when the rotating device stops working, the height of the handrail is stable, the angle of the backup plate is also fixed, and the spiral telescopic device is connected with the storage battery through a lead;
through trial and error, steerable the setting of backup plate angle makes the user more comfortable, more is favorable to user's rehabilitation and nursing, and the doctor-patient reaction is all very good.
Example three:
in the embodiment, the intelligent nursing wheelchair capable of converting the body temperature of the user into electric energy is constructed, and the intelligent nursing wheelchair can convert the heat energy on the backup plate and the seat cushion into the electric energy and charge the storage battery;
in this example, the smart care wheelchair comprises: the leg support comprises a support body, a seat cushion, a back cushion, driving wheels, driven wheels and leg placement frames, wherein rotating shafts of the two driving wheels are respectively fixed on two sides of the support body; the armrest of the frame body is fixedly connected with the backup plate, the backup plate can be connected with the seat plate in a turnover mode through the rotating shaft, and the seat plate is fixed; the handrail and the seat board are connected with the fixed support through the movable connecting piece, one end of the fixed support is movably connected with the seat board, and the other end of the fixed support is movably connected with the handrail; the intelligent nursing wheelchair is also provided with an intelligent module, and the intelligent module comprises an intelligent temperature adjusting module for automatically adjusting the temperature of the wheelchair, an intelligent angle adjusting module for controlling and adjusting the inclination angle of the backup plate, a telescopic adjusting device for controlling and adjusting the length of the leg placing frame and an energy conversion device for converting heat energy into electric energy; a spiral telescopic device is arranged on the part, close to the handrail, of the fixed support, and the handrail is enabled to move in an inclined mode through telescopic deformation of the fixed support, so that the inclination angle of the backup plate is changed; a foot supporting pad is fixed between the two leg placing frames, and a plurality of massage bulges are further arranged on the foot supporting pad; and the middle part of the leg placing frame is provided with an adjustable spring expansion device; the temperature intelligent regulation module comprises: the temperature adjusting device, the temperature sensing device, the pressure sensing device and the control device are respectively arranged on the backup plate and the seat plate;
in addition, a plurality of heat conducting fins are uniformly laid on the back cushion and the seat cushion, the heat conducting fins convey heat on the back cushion and the seat cushion to energy conversion equipment, the energy conversion equipment converts the heat energy into electric energy and conveys the electric energy to a storage battery to charge the storage battery, and the temperature intelligent adjusting module and the angle intelligent adjusting module are powered by the storage battery;
referring to fig. 2 and 3, the backup plate is fixedly connected with the handrail, the joint of the backup plate and the handrail is hinged on the seat plate in a turnover way on a turnover shaft 11, and a spiral expansion device 7 is arranged at one side close to the connection of the fixed frame and the handrail;
in this example, one end of the fixed frame is movably connected with the seat board, the other end of the fixed frame is movably connected with the armrest, a spiral expansion device is installed on the fixed frame near the armrest part, when the spiral expansion device expands, the front end of the armrest rises, the armrest drives the backup plate to back incline, when the spiral expansion device contracts, the front end of the armrest lowers, and the backup plate tilts forward;
in addition, the spiral expansion device comprises a first fixed outer frame 17 and a second fixed outer frame 18 which are connected with a fixed frame, a telescopic cavity 19 which is matched with the second fixed outer frame is arranged in the first fixed outer frame, the second fixed outer frame is positioned in the telescopic cavity and is in sliding connection with the inner wall of the first fixed outer frame, a rotating device 20 is arranged on the bottom surface of the telescopic cavity, the second fixed outer frame is of a hollow structure, a telescopic sleeve 16 is arranged at the bottom end of the second fixed outer frame, a spiral rod 14 is in threaded connection with the center of the telescopic sleeve, the output end of the rotating device is connected with the bottom end of the spiral rod, the rotating device is electrically connected with a controller, the cross section of the second fixed outer frame is matched with that of the telescopic cavity, and clamping plates 15 are arranged at the upper part and the bottom part of the spiral rod, the distance between the two clamping plates is the maximum movable distance of the height of the swivel chair, the rotation direction and the working state of the rotating device can be controlled by operating the controller, when the controller is operated to enable the rotating device to rotate forwards, the spiral rod is driven to rotate forwards, meanwhile, the telescopic sleeve in threaded connection with the spiral rod cannot rotate and can only move along the axial direction of the spiral rod, the second fixed outer frame is driven to move upwards at the same time, the armrest connected with the second fixed outer frame is driven to move upwards so as to adjust the height of the armrest, and the angle of the backup plate is adjusted at the same time, similarly, when the controller is operated to enable the rotating device to rotate backwards, the second fixed outer frame drives the armrest to move downwards slowly, and the height of the armrest can be adjusted through the rotation direction of the rotating device, meanwhile, the angle of the backup plate is adjusted, when the rotating device stops working, the height of the handrail is stable, the angle of the backup plate is also fixed, and the spiral telescopic device is connected with the storage battery through a lead;
through repeated tests and trial, the angle of the backup plate can be controlled, so that a user feels more comfortable, the rehabilitation and nursing of the user are facilitated, and the doctor-patient reaction is very good;
in this example, according to the structural block diagram of the temperature intelligent module shown in fig. 4, when the intelligent nursing wheelchair is not used, the temperature sensing device and the temperature adjusting device are automatically turned off, when the intelligent nursing wheelchair detects that a person is used, the temperature sensing device is automatically turned on, and according to the body temperature of the person on the seat, the temperature adjusting devices mounted on the back plate and the seat cushion automatically perform heating or cooling operation;
the pressure sensing device comprises at least one pressure sensor, the pressure sensors are annularly distributed in the center of the seat plate, and the pressure sensing device detects whether a person uses the intelligent nursing wheelchair;
when no one uses the intelligent nursing wheelchair, the pressure sensing device does not sense pressure, the control device closes the temperature sensing device and the temperature adjusting device, when a person sits on the intelligent nursing wheelchair, the pressure sensing device senses pressure, a first signal is formed and sent to the control device, the control device receives the first signal and executes a corresponding instruction, and the control device receives the corresponding instruction and opens the temperature sensing device and the temperature adjusting device;
the temperature sensing device sends a temperature value to the control device, the control device compares the received temperature value, when the temperature value is higher than a threshold range set by the control device, the control device generates and executes a temperature-reducing starting instruction, and on the contrary, when the temperature value is lower than the threshold set by the control device, the control device generates and executes a temperature-increasing starting instruction;
the temperature sensing devices are at least two and are respectively arranged at the back cushion and the seat cushion, the temperature sensing devices are the same, the temperature adjusting devices are also at least two and are respectively arranged at the back cushion and the seat cushion, and the temperature adjusting devices comprise a temperature rising device and a temperature falling device;
the temperature sensing device and the temperature adjusting device which are positioned on the backup plate and the temperature sensing device and the temperature adjusting device which are positioned on the seat plate work independently;
the temperature sensing device at the back pad sends the detected temperature value to the control device, the control device generates a corresponding instruction and further controls the temperature adjusting device of the back pad, and the temperature sensing device at the seat cushion sends the detected temperature value to the control device, the control device generates a corresponding instruction and further controls the temperature adjusting device of the seat cushion.
Example four:
in the embodiment, the intelligent nursing wheelchair capable of converting the body temperature of the user into electric energy is constructed, and the intelligent nursing wheelchair can convert the heat energy on the backup plate and the seat cushion into the electric energy and charge the storage battery;
in this example, the smart care wheelchair comprises: the leg support comprises a support body, a seat cushion, a back cushion, driving wheels, driven wheels and leg placement frames, wherein rotating shafts of the two driving wheels are respectively fixed on two sides of the support body; the armrest of the frame body is fixedly connected with the backup plate, the backup plate can be connected with the seat plate in a turnover mode through the rotating shaft, and the seat plate is fixed; the handrail and the seat board are connected with the fixed support through the movable connecting piece, one end of the fixed support is movably connected with the seat board, and the other end of the fixed support is movably connected with the handrail; the intelligent nursing wheelchair is also provided with an intelligent module, and the intelligent module comprises an intelligent temperature adjusting module for automatically adjusting the temperature of the wheelchair, an intelligent angle adjusting module for controlling and adjusting the inclination angle of the backup plate, a telescopic adjusting device for controlling and adjusting the length of the leg placing frame and an energy conversion device for converting heat energy into electric energy; the part, close to the handrail, of the fixed support is provided with a spiral telescopic device, and the handrail is enabled to tilt through telescopic deformation of the fixed support so as to change the inclination angle of the backup plate; a foot supporting pad is fixed between the two leg placing frames, and a plurality of massage bulges are further arranged on the foot supporting pad; and the middle part of the leg placing frame is provided with an adjustable spring expansion device; the temperature intelligent regulation module comprises: the temperature adjusting device, the temperature sensing device, the pressure sensing device and the control device are respectively arranged on the backup plate and the seat plate;
in addition, a plurality of heat conducting fins are uniformly laid on the back cushion and the seat cushion, the heat conducting fins convey heat on the back cushion and the seat cushion to energy conversion equipment, the energy conversion equipment converts the heat energy into electric energy and conveys the electric energy to a storage battery to charge the storage battery, and the temperature intelligent adjusting module and the angle intelligent adjusting module are powered by the storage battery;
referring to fig. 2 and 3, the back plate is fixedly connected with the handrail, the joint of the back plate and the handrail is rotatably hinged on the seat plate on a turnover shaft 11, and the spiral expansion device 7 is arranged at one side close to the connection of the fixed frame and the handrail;
in this example, one end of the fixed frame is movably connected with the seat board, the other end of the fixed frame is movably connected with the armrest, a spiral expansion device is installed on the fixed frame close to the armrest part, when the spiral expansion device expands, the front end of the armrest rises, the armrest drives the backup plate to incline backwards, when the spiral expansion device contracts, the front end of the armrest lowers, and the backup plate inclines forwards;
in addition, the spiral expansion device comprises a first fixed outer frame 17 and a second fixed outer frame 18 which are connected with a fixed frame, a telescopic cavity 19 which is matched with the second fixed outer frame is arranged in the first fixed outer frame, the second fixed outer frame is positioned in the telescopic cavity and is in sliding connection with the inner wall of the first fixed outer frame, a rotating device 20 is arranged on the bottom surface of the telescopic cavity, the second fixed outer frame is of a hollow structure, a telescopic sleeve 16 is arranged at the bottom end of the second fixed outer frame, a spiral rod 14 is in threaded connection with the center of the telescopic sleeve, the output end of the rotating device is connected with the bottom end of the spiral rod, the rotating device is electrically connected with a controller, the cross section of the second fixed outer frame is matched with that of the telescopic cavity, and clamping plates 15 are arranged at the upper part and the bottom part of the spiral rod, the distance between the two clamping plates is the maximum movable distance of the height of the swivel chair, the rotation direction and the working state of the rotating device can be controlled by operating the controller, when the controller is operated to enable the rotating device to rotate forwards, the spiral rod is driven to rotate forwards, meanwhile, the telescopic sleeve in threaded connection with the spiral rod cannot rotate and can only move along the axial direction of the spiral rod, the second fixed outer frame is driven to move upwards at the same time, the armrest connected with the second fixed outer frame is driven to move upwards so as to adjust the height of the armrest, and the angle of the backup plate is adjusted at the same time, similarly, when the controller is operated to enable the rotating device to rotate backwards, the second fixed outer frame drives the armrest to move downwards slowly, and the height of the armrest can be adjusted through the rotation direction of the rotating device, meanwhile, the angle of the backup plate is adjusted, when the rotating device stops working, the height of the handrail is stable, the angle of the backup plate is also fixed, and the spiral telescopic device is connected with the storage battery through a lead;
through repeated tests and trial, the angle of the backup plate can be controlled, so that a user feels more comfortable, the rehabilitation and nursing of the user are facilitated, and the doctor-patient reaction is very good;
according to the structural block diagram of the temperature intelligent module shown in fig. 4, when the intelligent nursing wheelchair is not used, the temperature sensing device and the temperature adjusting device are automatically turned off, when the intelligent nursing wheelchair detects that a person is used, the temperature sensing device is automatically turned on, and according to the body temperature of the person on the seat, the temperature adjusting devices mounted on the back plate and the seat cushion automatically perform heating or cooling work;
the pressure sensing device comprises at least one pressure sensor, the pressure sensors are annularly distributed in the center of the seat plate, and the pressure sensing device detects whether a person uses the intelligent nursing wheelchair;
when no one uses the intelligent nursing wheelchair, the pressure sensing device does not sense pressure, the control device closes the temperature sensing device and the temperature adjusting device, when a person sits on the intelligent nursing wheelchair, the pressure sensing device senses pressure, a first signal is formed and sent to the control device, the control device receives the first signal and executes a corresponding instruction, and the control device receives the corresponding instruction and opens the temperature sensing device and the temperature adjusting device;
the temperature sensing device sends a temperature value to the control device, the control device compares the received temperature value, when the temperature value is higher than a threshold range set by the control device, the control device generates and executes a temperature-reducing starting instruction, and on the contrary, when the temperature value is lower than the threshold set by the control device, the control device generates and executes a temperature-increasing starting instruction;
the temperature sensing devices are at least two and are respectively arranged at the back cushion and the seat cushion, the temperature sensing devices are the same, the temperature adjusting devices are also at least two and are respectively arranged at the back cushion and the seat cushion, and the temperature adjusting devices comprise a temperature rising device and a temperature lowering device;
the temperature sensing device and the temperature adjusting device which are positioned on the backup plate and the temperature sensing device and the temperature adjusting device which are positioned on the seat plate work independently;
the temperature sensing device at the back cushion sends the detected temperature value to the control device, the control device generates corresponding instructions and further controls the temperature adjusting device of the back cushion, and the temperature sensing device at the seat cushion sends the detected temperature value to the control device, the control device generates corresponding instructions and further controls the temperature adjusting device of the seat cushion;
the leg placing frame comprises a first leg placing frame and a second leg placing frame which are completely the same, a first spring expansion device is installed on the first leg placing frame, and a second spring expansion device is installed on the second leg placing frame;
referring to fig. 5, taking the first leg placing frame as an example, the first spring retractor is mounted in a middle portion of the first leg placing frame, wherein the first spring retractor includes: receiver 22, switch 23, extension spring 25, guide rod 26, outer frame 27, inner slide 28 and shape memory alloy spring 32;
the inner sliding block and the outer frame can move up and down relatively; in order to prevent the first leg placing frame from generating unbalance loading when sliding up and down relatively, the upper outer wall of the first leg placing frame is also provided with a vertical guiding device, and the vertical guiding device is matched with the elastic strip by a groove;
with reference to fig. 5 and 6, the inner sliding block is provided with a sliding groove 30, the sliding groove guides the motion path of the guide rod, and the outer frame and the inner sliding block form a mechanism capable of sliding up and down through the interaction between the guide rod and the sliding groove;
the guide rod is of a rod-shaped structure, one end of the guide rod is arranged in the blind hole of the outer frame, the other end of the guide rod is arranged in a hole formed in the wall of the inner sliding block, and two clamping devices 29 which are not on the same height horizontal line are arranged in the hole formed in the outer wall of the inner sliding block;
a first rest position 33 and a second rest position 34 are included in the sliding groove;
the inner sliding block is arranged in the blind hole formed in the outer frame, one end of the inner sliding block is connected with the telescopic spring, the other end of the inner sliding block is connected with the leg placing frame through a fixing element, the length of the first leg placing frame is changed by heating the shape memory alloy spring, the telescopic spring provides restoring force to enable the guide rod to restore from one resting position to another resting position, and when the shape memory alloy spring reaches one resting position after being deformed, the guide rod and the clamping device work in a matched mode to enable the length of the first leg placing frame to be fixed;
the shape memory alloy spring is connected with a controller through a lead 24, and the controller is connected with the storage battery; the controller comprises a receiver and a switch, wherein the receiver is connected with the storage battery in series;
when a controller button is pressed, the receiver receives a control signal, the control signal controls the switch to be connected with the switch, joule heat generated after electrification triggers the shape memory effect of the shape memory alloy spring, the shape memory alloy spring is extended, the spring expansion device is extended, and the guide rod moves from the current rest position along the path of the sliding groove;
when the controller button is released, the circuit is disconnected, the temperature of the shape memory alloy spring is reduced and softened and contracted, and the guide rod enters another rest position of the sliding groove by the spring retractor under the action of a conventional telescopic spring and the sliding groove;
with reference to fig. 6, this is repeated, once the controller presses, the guide rod goes from one rest position to another rest position of the sliding groove, and once the controller presses, the guide rod returns from the current rest position of the sliding groove to the initial rest position, and the length extension of the first leg placement frame is realized by adjusting the length of the first spring retractor;
likewise, the length extension of the second leg rest is also achieved by adjusting the length of the second spring retractor, which is not described in detail here.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
In conclusion, it is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is illustrative only and is not intended to limit the scope of the invention. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.

Claims (1)

1. A post-operative patient rehabilitation temperature angle adjustable smart care wheelchair, comprising: the leg support comprises a support body, a seat cushion, a back cushion, driving wheels, driven wheels and leg placement frames, wherein rotating shafts of the two driving wheels are respectively fixed on two sides of the support body; the armrest of the frame body is fixedly connected with the backup plate, the backup plate can be connected with the seat plate in a turnover mode through the rotating shaft, and the seat plate is fixed; the handrail and the seat board are connected with the fixed support through the movable connecting piece, one end of the fixed support is movably connected with the seat board, and the other end of the fixed support is movably connected with the handrail; the intelligent nursing wheelchair is also provided with an intelligent module, and the intelligent module comprises an intelligent temperature adjusting module for automatically adjusting the temperature of the wheelchair, an intelligent angle adjusting module for controlling and adjusting the inclination angle of the backup plate, a telescopic adjusting device for controlling and adjusting the length of the leg placing frame and an energy conversion device for converting heat energy into electric energy; the part, close to the handrail, of the fixed support is provided with a spiral telescopic device, and the handrail is enabled to tilt through telescopic deformation of the fixed support so as to change the inclination angle of the backup plate; a foot supporting pad is fixed between the two leg placing frames, and a plurality of massage bulges are further arranged on the foot supporting pad; and the middle part of the leg placing frame is provided with an adjustable spring expansion device; the temperature intelligent regulation module comprises: the temperature adjusting device, the temperature sensing device, the pressure sensing device and the control device are respectively arranged on the backup plate and the seat plate;
the back cushion and the seat cushion are uniformly laid with a plurality of heat conducting fins, the heat conducting fins convey heat on the back cushion and the seat cushion to energy conversion equipment, the energy conversion equipment converts the heat energy into electric energy and conveys the electric energy to a storage battery to charge the storage battery, and the temperature intelligent adjusting module and the angle intelligent adjusting module are powered by the storage battery;
the backrest plate is fixedly connected with the handrail, the joint of the backrest plate and the handrail is hinged on the seat plate on a turnover shaft (11) in a turnover manner, and the spiral telescopic device (7) is arranged at one side close to the connection of the fixed frame and the handrail;
one end of the fixed frame is movably connected with the seat board, the other end of the fixed frame is movably connected with the handrail, a spiral telescopic device is arranged on the fixed frame close to the handrail part, when the spiral telescopic device extends, the front end of the handrail rises, the handrail drives the backup plate to back tilt backwards, when the spiral telescopic device contracts, the front end of the handrail lowers, and the backup plate tilts forwards;
the spiral telescopic device comprises a first fixed outer frame (17) and a second fixed outer frame (18) which are connected with a fixed frame, a telescopic cavity (19) matched with the second fixed outer frame is arranged in the first fixed outer frame, the second fixed outer frame is positioned in the telescopic cavity and is in sliding connection with the inner wall of the first fixed outer frame, a rotating device (20) is arranged on the bottom surface of the telescopic cavity, the second fixed outer frame is of a hollow structure, a telescopic sleeve (16) is arranged at the bottom end of the second fixed outer frame, a spiral rod (14) is in threaded connection with the center of the telescopic sleeve, the output end of the rotating device is connected with the bottom end of the spiral rod, the rotating device is electrically connected with a controller, the cross section of the second fixed outer frame is matched with that of the telescopic cavity, and clamping plates (15) are arranged at the upper part and the bottom part of the spiral rod, the distance between the two clamping plates is the maximum movable distance of the height of the swivel chair, the rotation direction and the working state of the rotating device can be controlled by operating the controller, when the controller is operated to enable the rotating device to rotate forwards, the spiral rod is driven to rotate forwards, meanwhile, the telescopic sleeve in threaded connection with the spiral rod cannot rotate and can only move along the axial direction of the spiral rod, the second fixed outer frame is driven to move upwards at the same time, the armrest connected with the second fixed outer frame is driven to move upwards so as to adjust the height of the armrest, and the angle of the backup plate is adjusted at the same time, similarly, when the controller is operated to enable the rotating device to rotate backwards, the second fixed outer frame drives the armrest to move downwards slowly, and the height of the armrest can be adjusted through the rotation direction of the rotating device, meanwhile, the angle of the backup plate is adjusted, when the rotating device stops working, the height of the handrail is stable, the angle of the backup plate is also fixed, and the spiral telescopic device is connected with the storage battery through a lead;
when the intelligent nursing wheelchair is not used by people, the temperature sensing device and the temperature adjusting device are automatically closed, when the intelligent nursing wheelchair detects that people are used, the temperature sensing device is automatically opened, and the temperature adjusting devices arranged on the backup plate and the seat cushion automatically perform heating or cooling according to the body temperature of the people on the seat;
the pressure sensing device comprises at least one pressure sensor, the pressure sensors are annularly distributed in the center of the seat plate, and the pressure sensing device detects whether a person uses the intelligent nursing wheelchair; when no one uses the intelligent nursing wheelchair, the pressure sensing device does not sense the pressure, the control device closes the temperature sensing device and the temperature adjusting device, when a person sits on the intelligent nursing wheelchair, the pressure sensing device senses the pressure, a first signal is formed and sent to the control device, the control device receives the first signal and executes a corresponding instruction, and the control device receives the corresponding instruction and opens the temperature sensing device and the temperature adjusting device;
the temperature sensing device sends a temperature value to the control device, the control device compares the received temperature value, when the temperature value is higher than a threshold range set by the control device, the control device generates and executes a temperature-reducing starting instruction, and on the contrary, when the temperature value is lower than the threshold set by the control device, the control device generates and executes a temperature-increasing starting instruction;
the leg placing frame comprises a first leg placing frame and a second leg placing frame which are completely the same, a first spring expansion device is installed on the first leg placing frame, and a second spring expansion device is installed on the second leg placing frame;
first spring telescoping device and second spring telescoping device all include: the device comprises a receiver, a switch, a telescopic spring, a guide rod, an outer frame, an inner slide block and a shape memory alloy spring; the inner sliding block and the outer frame can move up and down relatively; the inner sliding block is provided with a sliding groove which plays a role in guiding the motion path of the guide rod, and the outer frame and the inner sliding block form a mechanism capable of sliding up and down through the interaction between the guide rod and the sliding groove; one end of the guide rod is arranged in the blind hole of the outer frame, the other end of the guide rod is arranged in a hole formed in the wall of the inner sliding block, and two clamping devices which are not on the same height horizontal line are arranged in the hole formed in the outer wall of the inner sliding block; the sliding groove comprises a first rest position and a second rest position; the inner sliding block is arranged in the blind hole formed in the outer frame, one end of the inner sliding block is connected with the telescopic spring, the other end of the inner sliding block is connected with the fixing element, the shape memory alloy spring is heated to enable the length of the first leg placing frame and the length of the second leg placing frame to be changed, the telescopic spring provides restoring force to enable the guide rod to return to another resting position from one resting position, when the shape memory alloy spring reaches one resting position after being deformed, the guide rod and the clamping device work in a matched mode, and the length of the leg placing frame is fixed.
CN202010388841.XA 2020-05-09 2020-05-09 Intelligent nursing wheelchair with adjustable temperature and angle for rehabilitation of postoperative patient Expired - Fee Related CN111513944B (en)

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