CN113350058A - Wheelchair with liftable supporting legs - Google Patents

Wheelchair with liftable supporting legs Download PDF

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Publication number
CN113350058A
CN113350058A CN202110597588.3A CN202110597588A CN113350058A CN 113350058 A CN113350058 A CN 113350058A CN 202110597588 A CN202110597588 A CN 202110597588A CN 113350058 A CN113350058 A CN 113350058A
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CN
China
Prior art keywords
plate
wheelchair
supporting
legs
leg
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110597588.3A
Other languages
Chinese (zh)
Inventor
王北兴
张月锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Wanjiade Industrial Co ltd
Original Assignee
Xi'an Wanjiade Industrial Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xi'an Wanjiade Industrial Co ltd filed Critical Xi'an Wanjiade Industrial Co ltd
Priority to CN202110597588.3A priority Critical patent/CN113350058A/en
Publication of CN113350058A publication Critical patent/CN113350058A/en
Pending legal-status Critical Current

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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
    • A61G5/006—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs convertible to stretchers or beds
    • 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
    • A61G5/1002—Parts, details or accessories with toilet facilities
    • 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
    • A61G5/1059—Arrangements for adjusting the seat adjusting the height of the seat
    • 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
    • A61G5/12—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
    • A61G5/128—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
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/04—Wheeled walking aids for disabled persons

Abstract

The invention discloses a wheelchair with liftable legs, which comprises a seat plate capable of being used as a toilet, wherein the two opposite sides of the seat plate are respectively provided with the legs, the upper ends of the two legs are respectively provided with a liftable handrail, the bottoms of the two legs are respectively provided with a roller wheel, one end of the seat plate is connected with a back plate through a spline transmission rod, the other end of the seat plate is connected with the upper end of a leg supporting plate, and the lower end of the leg supporting plate is connected with a pedal; the supporting leg comprises a supporting block, a cavity is formed in the center of the supporting block along the vertical direction, a sliding block is embedded in the cavity, a driving mechanism A is further arranged in the cavity and connected with the sliding block, and a handrail is arranged above the sliding block; the bottom two ends of the supporting block are respectively provided with a roller. The invention can realize height adjustment and is convenient for people with different heights to use.

Description

Wheelchair with liftable supporting legs
Technical Field
The invention belongs to the technical field of medical instruments, and relates to a wheelchair with liftable supporting legs.
Background
The wheelchair is an indispensable use tool for some people with inconvenient movement or poor self-care ability, the height of the existing wheelchair is inconvenient to fix, so that people with different heights can not adjust the wheelchair to the height suitable for the user according to the height of the user, and the wheelchair is inconvenient to use.
Disclosure of Invention
The invention aims to provide a wheelchair with lifting support legs, which can realize height adjustment and is convenient for people with different heights to use.
The invention adopts the technical scheme that the wheelchair with the liftable supporting legs comprises a sitting plate capable of being used as a toilet, wherein the two opposite sides of the sitting plate are respectively provided with the supporting legs, the upper ends of the two supporting legs are respectively provided with a liftable handrail, the bottoms of the two supporting legs are respectively provided with a roller wheel, one end of the sitting plate is connected with a back plate through a spline transmission rod, the other end of the sitting plate is connected with the upper end of a leg supporting plate, and the lower end of the leg supporting plate is connected with a pedal;
the supporting leg comprises a supporting block, a cavity is formed in the center of the supporting block along the vertical direction, a sliding block is embedded in the cavity, a driving mechanism A is further arranged in the cavity and connected with the sliding block, and a handrail is arranged above the sliding block; the bottom two ends of the supporting block are respectively provided with a roller.
The invention is also characterized in that:
the driving mechanism A comprises a motor A, a main shaft of the motor A is connected with the lower end of a lead screw A, a nut is coaxially sleeved on the lead screw A, and the outer wall of the nut is fixedly connected in a sliding block.
A driving mechanism B is arranged in the sliding block and connected with the handrail.
The driving mechanism B comprises a motor B, a main shaft of the motor B is connected with the lower end of a lead screw B, a hollow loop bar is coaxially connected onto the lead screw B, the upper end of the lead screw B extends into the hollow loop bar from the lower end of the loop bar, the inner wall of the loop bar is connected with the lead screw B in a screwing mode, and the upper end of the loop bar is connected with the handrail.
The bottom surface of the supporting block is of an inverted V-shaped structure.
The two opposite sides of the seat plate are respectively connected with the two supporting legs through fulcrum shafts.
The wheelchair with the liftable legs has the advantages that the liftable legs are respectively arranged on the two opposite sides of the seat plate of the wheelchair, so that the height of the seat plate of the wheelchair can be adjusted, people with different heights can adjust the height of the wheelchair according to the height of the wheelchair when the wheelchair is taken, and the comfort level is improved.
Drawings
FIG. 1 is a schematic structural view of a wheelchair with liftable legs according to the present invention;
FIG. 2 is an exploded view of a wheelchair with liftable legs according to the present invention;
FIG. 3 is a schematic structural view of a seat plate of a wheelchair with liftable legs;
FIG. 4 is a schematic view of the wheelchair with liftable legs, with the cover of the seat plate opened;
FIG. 5 is a schematic structural view of a leg of a wheelchair with a liftable leg according to the present invention;
FIG. 6 is an exploded view of a leg of a wheelchair with a liftable leg according to the present invention;
FIG. 7 is a schematic structural view of the connection between the support handle and the back plate of the wheelchair with liftable legs;
FIG. 8 is a schematic view of another structure of the connection between the support handle and the back plate of the wheelchair with liftable legs;
FIG. 9 is an exploded view of a partial structure of a support handle and a bracket cross arm of the wheelchair with liftable legs;
FIG. 10 is a schematic view of the connection between the leg support plate and the foot pedal of the wheelchair with liftable legs.
In the figure, 3, 1, 3, 2, 3, 4, 3, 5, 3, 6, 3, 8, 3, 8, cover plate electric turbine pair;
5-1, an armrest body, 5-2, a motor B, 5-3, a screw rod B, 5-4 and a loop bar;
7. the novel electric bicycle comprises a back plate, 7-1 parts of a back plate body, 7-2 parts of a supporting handle, 7-3 parts of a double-output motor III, 7-4 parts of a positive screw rod, 7-5 parts of a negative screw rod, 7-6 parts of a positive screw nut, 7-7 parts of a negative screw nut, 7-8 parts of a bracket cross arm, 7-9 parts of a cross arm sliding block, 7-10 parts of a cross arm guide rail, 7-11 parts of a cross arm screw rod motor, 7-12 parts of a cross arm screw rod, 7-13 parts of a cross arm screw nut, 7-14 parts of a supporting handle sliding block, 7-15 parts of a supporting handle shaft seat and 7-16 parts of a supporting handle electric turbine pair;
9. the supporting legs, 9-1 supporting blocks, 9-2 cavities, 9-3 sliding blocks, 9-4 motors A, 9-5 lead screws A, 9-6 nuts;
10. a back plate ear plate 11, a leg support plate;
12. the pedal comprises a pedal plate, 12-1 parts of hinge holes, 12-2 parts of step sleeves, 12-3 parts of pedal motors, 12-4 parts of shaft sleeves and 12-5 parts of rotating sleeves;
13-1, a fulcrum shaft, 13-2, a turbine and 13-3, an electric worm;
14. the worm gear reducer comprises a roller, 15, worm gear reducer I, 16, a back plate cavity, 17, a spline transmission rod, 18, a leg plate cavity, 19, a leg plate lug plate, 20, worm gear reducer II, 21 and a leg plate spline transmission rod.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a wheelchair with liftable supporting legs, which comprises a sitting plate 3 capable of being used as a toilet, wherein two opposite sides of the sitting plate 3 are respectively provided with supporting legs 9, the upper ends of the two supporting legs 9 are respectively provided with a liftable handrail 5-1, the bottoms of the two supporting legs 9 are respectively provided with a roller 14, one end of the sitting plate 3 is connected with a back plate 7 through a spline transmission rod 17, the other end of the sitting plate 3 is connected with the upper end of a leg supporting plate 11, and the lower end of the leg supporting plate 11 is connected with a pedal 12;
as shown in fig. 5 and 6, the supporting leg 9 comprises a supporting block 9-1, a cavity 9-2 is formed in the center of the supporting block 9-1 along the vertical direction, a sliding block 9-3 is embedded in the cavity 9-2, a driving mechanism a is further arranged in the cavity 9-2, the driving mechanism a is connected with the sliding block 9-3, and a handrail 5-1 is arranged above the sliding block 9-3; the two ends of the bottom of the supporting block 9-1 are respectively provided with a roller 14.
The driving mechanism A comprises a motor A9-4, a main shaft of the motor A9-4 is connected with the lower end of a lead screw A9-5, a screw nut 9-6 is coaxially sleeved on the lead screw A9-5, and the outer wall of the screw nut 9-6 is fixedly connected in a sliding block 9-3.
A driving mechanism B is arranged in the sliding block 9-3 and is connected with the handrail 5-1.
The driving mechanism B comprises a motor B5-2, a main shaft of the motor B5-2 is connected with the lower end of a lead screw B5-3, a hollow loop bar 5-4 is coaxially connected to the lead screw B5-3, the upper end of the lead screw B5-3 extends into the hollow loop bar from the lower end of the loop bar 5-4, the inner wall of the loop bar 5-4 is connected with the lead screw B5-3 in a screwing mode, and the upper end of the loop bar 5-4 is connected with the handrail 5-1.
The bottom surface of the supporting block 9-1 is of an inverted V-shaped structure.
As shown in fig. 3 and 4, the seat plate 3 comprises a seat plate body 3-1, a toilet hole 3-2 is formed in the seat plate body 3-1, a toilet hole cover plate 3-3 which is adapted to the shape of the toilet hole 3-2 is arranged in the toilet hole 3-2, the toilet hole cover plate 3-3 is rotatably connected with the seat plate body 3-1, and the toilet hole cover plate 3-3 is turned downwards and upwards to respectively open and close the toilet hole 3-2.
Two opposite sides of the seat plate body 3-1 are respectively provided with a fulcrum shaft 13-1, and the fulcrum shafts 13-1 are positioned at a position one third of the width of the seat plate 3; two supporting shafts 13-1 are respectively and coaxially sleeved with a turbine 13-2, and the two turbines 13-2 are respectively matched with an electric worm 13-3 to form a turbine pair; the two worm gear pairs are respectively arranged on the sliding blocks 9-3 of the two supporting legs 9, and in order to limit the turning angle of the seat plate 3, the upper surface of the worm gear 13-2 is not provided with full teeth, so that when the electric worm 13-3 is matched with the worm gear 13-2, a part of area of the worm gear 13-2 is not matched, namely the worm gear 13-2 cannot drive the seat plate 3 to turn 360 degrees.
One end of the seat plate body 3-1 is connected with a back plate 7, two opposite sides of the bottom of the back plate 7 are respectively provided with a back plate ear plate 10, and the bottom of the seat plate body 3 is provided with a spline transmission rod 17 along the horizontal direction; the spline transmission rod 17 penetrates through a turbine center hole of the turbine worm speed reducer I15, and two ends of the spline transmission rod 17 are respectively connected with the two back plate ear plates 10; in order to make the whole wheelchair compact in structure, back plate cavities 16 are respectively arranged on two opposite sides of one end, close to the back plate 7, of the seat plate body 3, and the two back plate ear plates 10 are just embedded in the two back plate cavities 16, so that the back plate 7 and the seat plate body 3 can be compactly matched; a leg supporting plate 11 is connected to the lower side of one end of the seat plate body 3 far away from the back plate 7 body;
the spline transmission rod 17 is coaxially sleeved with a cover plate rotating shaft 3-4, the cover plate rotating shaft 3-4 and the spline transmission rod 17 do not interact with each other, the hole cover plate 3-3 and the cover plate rotating shaft 3-4 are connected through two swing arms 3-5, one end of each swing arm 3-5 is fixedly connected with the cover plate rotating shaft 3-4, the other end of each swing arm 3-5 is fixed at the tail end of the lower surface of the hole cover plate 3-3, the seat plate body 3-1 is provided with two swing arm rotating grooves 3-6 corresponding to the swing arms 3-5, the two swing arm rotating grooves 3-6 are in one-to-one correspondence with the swing arms 3-5, the edge of the seat plate body 3-1 close to the tail end of the hole cover plate 3-3 is provided to the cover plate rotating shaft 3-4, and the hole cover plate 3-3 is turned from one limit position to the other limit position, the swing arm 3-5 passes through the swing arm rotating groove 3-6, and the swing arm rotating groove 3-6 is used for ensuring that the swing arm 3-5 has enough rotating space in the rotating process.
The surface of the cover plate rotating shaft 3-4 is provided with splines, the cover plate rotating shaft 3-4 is connected with a cover plate motor or a cover plate electric turbine pair 3-8 fixed in the seat plate body 3-1, the cover plate electric turbine pair 3-8 is a hole output type cover plate electric turbine pair, and the maximum overturning angle of the toilet cover plate 3-3 is 270 degrees. The seat body 3-1 is used for bearing the weight of a human body and is equivalent to a seat plate of a common seat structure. The toilet hole 3-2 is matched with the toilet hole cover plate 3-3, when the toilet hole 3-2 is closed, the toilet hole cover plate 3-3 is embedded in the toilet hole 3-2 to keep the seat plate body 3-1 flat, and when the toilet hole 3-2 is opened, the toilet hole cover plate 3-3 is turned downwards and backwards to vacate the space below the seat plate body 3-1. The swing arm 3-5 is used for connecting the cover plate rotating shaft 3-4 and the toilet cover plate 3-3 to drive the toilet cover plate 3-3 to rotate, the swing arm can also play a limiting role in limiting the rotation of the toilet cover plate 3-3, and when the swing arm 3-5 drives the toilet cover plate 3-3 to close due to the blocking of the seat plate body 3-1, the toilet cover plate 3-3 can only reach the position which is flush with the seat plate body 3-1 and can not protrude from the upper surface of the seat plate body 3-1, so that the seat plate body 3-1 is smooth when the toilet cover plate 3-3 is completely closed.
The swing arm rotating groove 3-6 increases the turnover angle of the toilet cover plate 3-3, so that the toilet cover plate 3-3 can be continuously turned upwards when being positioned behind the seat plate body 3-1 without being influenced by the seat plate body 3-1, and the space behind the seat plate body 3-1 is saved. The cover plate rotating shaft 3-4 is driven to rotate by a cover plate motor or a cover plate electric turbine pair 3-8, so that the hole cover plate is turned over.
Two rollers 14 positioned on the same supporting leg 9, wherein one roller 14 is an electric driving wheel (a circle of rubber is wrapped outside an electric motor to form the electric driving wheel); the other roller 14 is a guide wheel; the two rollers 14 located at the front side of the two legs 9 may be electric driving wheels, or the two rollers 14 located at the rear side of the two legs 9 may be electric driving wheels.
As shown in fig. 10, two opposite sides of the upper end of the leg supporting plate 11 are respectively provided with a leg plate ear plate 19, two opposite sides of one end of the seat plate 3 close to the leg supporting plate 11 are respectively provided with a leg plate cavity 18, the two leg plate ear plates 19 are respectively embedded in the two leg plate cavities 18, the other end of the bottom of the seat plate 3 is provided with a leg plate spline transmission rod 21 along the horizontal direction, the leg plate spline transmission rod 21 passes through a turbine central hole of a turbine worm speed reducer II20, two ends of the leg plate spline transmission rod 21 are respectively connected with the two push plate ear plates 19, the lower end of the leg supporting plate 11 is connected with a pedal 12, and the pedal 12 is of an integrated structure, so that a person can step on the pedal stably;
the two opposite sides of the lower end of the leg supporting plate 11 are respectively provided with a hinge hole 12-1, a step sleeve 12-2 is respectively arranged in the hinge hole 12-1, a pedal motor 12-3 is arranged in the step sleeve 12-2, a main shaft of the pedal motor 12-3 is arranged in a shaft sleeve 12-4, and the pedal motor 12-3, the step sleeve 12-2 and the shaft sleeve 12-4 form a group of power shaft pin combination; namely, each hinge hole 12-1 is respectively provided with a group of power shaft pin combinations. One end of the pedal 12 close to the leg supporting plate 11 is provided with a rotating sleeve 12-5, and shaft sleeves 12-4 in the two groups of power shaft pin combinations are fixedly sleeved at two ends of the rotating sleeve 12-5 respectively, so that the electric folding and unfolding of the pedal 12 are realized; when the pedal 12 is in an open state and bears the force, the lower edges of the pedal 12 and the leg support plate 11 form a mechanical dead point to ensure the force bearing requirement.
As shown in figures 7-9, the backboard 7 comprises a backboard body 7-1, long-handle-shaped support handles 7-2 are arranged on both sides of the backboard body 7-1, a dual-output motor III7-3 is further arranged in the backboard body 7-1, two output ends of the dual-output motor III7-3 are respectively connected with a positive screw rod 7-4 and a reverse screw rod 7-5, a positive screw nut 7-6 of the positive screw rod 7-4 is connected with one end of one support handle 7-2, a reverse screw nut 7-7 of the reverse screw rod 7-5 is connected with one end of the other support handle 7-2, a support handle slider 7-14 is fixedly connected between the positive screw nut 7-6 and the one support handle 7-2, a support handle slider 7-14 is also fixedly connected between the reverse screw nut 7-7 and the other support handle 7-2, a support handle axle seat 7-15 is arranged at the connection end of the support handle slider 7-14 and the support handle 7-2, a handle-supporting electric turbine pair 7-16 is arranged in the handle-supporting 7-2, the handle-supporting electric turbine pair 7-16 is integrally embedded in the handle-supporting 7-2, the output end of the output shaft of the handle-supporting electric turbine pair 7-16 is sleeved on the handle-supporting shaft seat 7-15, and the handle-supporting electric turbine pair 7-16 drives the handle-supporting 7-2 to rotate around the handle-supporting shaft seat 7-15. The lower end of the back plate body 7-1 is connected with the seat plate body 3-1 through a spline transmission rod 17.
Fig. 7 and 8 show two different structures of the back plate 7, respectively, in the structure of the back plate 7 in fig. 7, two support handles 7-2 are turned downwards;
in the structure of the back plate 7 in fig. 8, two support handles 7-2 are turned upwards.
The back plate body 7-1 is internally provided with a bracket cross arm 7-8, the bracket cross arm 7-8 is a hollow structure shell, a double-output motor III7-3, a positive wire lead screw 7-4, a negative wire lead screw 7-5 and a slide block are all arranged in the bracket cross arm 7-8, the double-output motor III7-3 is positioned in the middle of the bracket cross arm 7-8, two support handles 7-2 are symmetrically arranged, and the two support handles 7-2 are perpendicular to the bracket cross arm 7-8.
The surface of a bracket cross arm 7-8 is fixed with a cross arm slide block 7-9, two cross arm guide rails 7-10 and a cross arm screw rod motor 7-11 are fixed in a back plate body 7-1, the two cross arm guide rails 7-10 are respectively close to two support handles 7-2, the cross arm slide block 7-9 is embedded on the cross arm guide rails 7-10, the number of the cross arm slide blocks 7-9 corresponds to that of the cross arm guide rails 7-10, the cross arm screw rod motor 7-11 is connected with a cross arm screw rod 7-12 in a driving mode, a cross arm screw nut 7-13 of the cross arm screw rod 7-12 is fixedly connected with the bracket cross arm 7-8, and the cross arm screw rod 7-12 and the cross arm guide rails 7-10 are arranged along the length direction of the back plate body 7-1.
The back plate body 7-1 is used for leaning on the back and is equivalent to a back plate of a common seat structure. The support handle 7-2 is used for supporting the armpit of the user, providing a lifting force for the user and limiting the inclination of the user to two sides to prevent the user from falling. The double-output motor III7-3 is used for driving the positive lead screw 7-4 and the negative lead screw 7-5 simultaneously, and the driving structure is simplified. The positive screw rod 7-4 and the negative screw rod 7-5 are used for transmission, and the distance between the two support handles 7-2 is adjusted. The support handle sliding blocks 7-14 enable the positive screw nuts 7-6 and the negative screw nuts 7-7 to be connected with the support handle 7-2 more stably, the support handle 7-2 moves more stably, and meanwhile, a support handle shaft seat is convenient to install. The handle-supporting electric turbine pair 7-16 is used for driving the handle-supporting 7-2 to rotate, and the rotation angle of the handle-supporting is generally 90 degrees.
The wheelchair with the liftable supporting legs can realize that when a person sits on the wheelchair with the liftable supporting legs, the worm gear speed reducer I15 drives the spline transmission rod 17 to rotate, the rotation of the spline transmission rod 17 drives the back plate 7 to rotate, and the angle adjustment between the back plate 7 and the seat plate 3 is realized; due to the matching of the worm gear speed reducer I15 and the spline transmission rod 17, the adjustment of different inclination angles between the back plate 7 and the seat plate 3 is realized; after the switch that starts turbine worm speed reducer I15, can oneself feel the comfort level of the slope of backplate 7 angle through the people who sits on the wheelchair, when backplate 7 rotated suitable angle, turbine worm speed reducer I15 stop work makes backplate 7 maintain the angle state of current regulation, adopt the wheelchair structure that this embodiment 1 provided, when people want to carry out the short rest on the wheelchair, can adjust suitable angle with backplate 7, improve the comfort level of people when having a rest on the wheelchair.
The overturning principle of the seat plate 3 is that when the seat plate 3 overturns relative to the support legs 9, the electric worm 13-3 is started, the turbine pair formed by matching the electric worm 13-3 and the turbine 13-2 is brought to the support shaft 13-1 to rotate, the seat plate 3 overturns along with the support shaft 13-1, and the support shaft 13-1 is arranged at one third of one end of the seat plate 3, so that when a person stands up and stands, a space left after the seat plate 3 overturns can be enough for the person to stand, two hands of a user hold the armrest of the chair, and after the seat plate 3 overturns, the person can stand between the two support legs 9 by leaning on own power, so that the person can stand for training without leaving the chair, and the periphery of the person is surrounded by other structures of the chair, thereby improving the safety.
The use principle of the back plate 7 and the support handle 7-2 is that before a user uses the chair, a double-output motor III7-3 is started, the double-output motor III7-3 drives the positive screw rod 7-4 and the negative screw rod 7-5 to rotate, the positive screw nut 7-6 drives the support handle slider 7-14 and the support handle 7-2 to move, the distance between the two support handles 7-2 is adjusted to a proper position, the support handle is turned upwards to reach the armpit of the user, the cross arm screw rod motor 7-11 is started, the cross arm screw rod motor 7-11 is connected with the cross arm screw rod 7-12 in a driving way, the cross arm slider 7-9 moves to a proper height along the cross arm guide rail 7-10, and the user can sit on a chair or a wheelchair, the distance between the two support handles and the height of the support handles can be readjusted according to the personal condition of a user.
For a fixed user, the position of the support handle 7-2 can be memorized through a control system, and adjustment is not needed at each time subsequently, specifically, the double-output motor 7-3 is adjusted, the double-output motor 7-3 drives the positive screw rod 7-4 and the negative screw rod 7-5 to rotate, the positive screw nut 7-6 drives the support handle slide block 7-14 and the support handle 7-2 to move, and the negative screw nut 7-7 drives the support handle slide block 7-14 and the support handle 7-2 to move, so that a proper distance between the two support handles 7-2 is achieved; and adjusting a cross arm screw rod motor 7-11 to drive a cross arm screw rod 7-12, so that a cross arm slide block 7-9 slides up and down to a proper height along a cross arm guide rail 7-10. Thus, the width and height of the holder 7-2 are in a proper position, and the control system can memorize the position so as to be conveniently, quickly and rapidly used in the future.
The lifting principle of the handrail 5-1 is that a motor B5-2 is started, the motor B5-2 drives a lead screw B5-3 to rotate, the lead screw B5-3 is matched with a loop bar 5-4 (the inner wall of the loop bar 5-4 is provided with a tooth shape matched with the lead screw B5-3), and the lead screw B5-3 rotates to enable the loop bar 5-4 to move up and down along a sliding block 9-3 so as to drive the handrail 5-1 to lift; the slide block 9-3 is provided with a guide hole along the vertical direction, the loop bar 5-4 is arranged in the guide hole, and the guide hole plays a role of guiding the loop bar 5-4 to realize the lifting of the handrail body 5-1.
When a person needs to stand by the aid of the wheelchair, the back plate 7, the seat plate 3 and the leg support plate 11 are displaced on the same plane in the vertical direction through the cooperation of the worm gear and worm speed reducer I15, the worm gear and worm speed reducer II20 and the driving mechanism for overturning the seat plate body 3-1, and the back plate and the legs of the person are supported in the standing process of the person; when the human body stands, the feet of the human body can directly step on the pedal plate 12, or the feet of the human body stand on the ground after the pedal plate 12 is turned over relative to the leg supporting plate 11; when a person stands on the ground, the pedal plate 12 is connected with the leg support plate 11 through a pedal transmission shaft, and when the person stands on the pedal plate 12, the pedal plate 12 can be fixedly connected with the leg support plate 11 or can be connected with the leg support plate through the pedal transmission shaft.
When the toilet function of the seat plate 3 is used: starting a cover plate motor or a cover plate electric turbine pair 3-8 to enable a cover plate rotating shaft 3-4 to rotate, driving a toilet hole cover plate 3-3 to turn downwards and backwards by a swing arm 3-5 to turn over to the maximum angle of turning over, stopping the cover plate motor or the cover plate electric turbine pair 3-8, moving a seat or a wheelchair and other structures to enable a toilet hole 3-2 to be positioned right above the toilet or to be free of moving the seat or the wheelchair and other structures, and placing toilet appliances below the toilet hole 3-2 after turning over the toilet hole cover plate 3-3. When the toilet hole 3-2 needs to be closed, the seat or wheelchair and other structures are moved away from the toilet or toilet appliances are moved away, the cover plate motor or the cover plate electric turbine pair 3-8 continues to operate, the cover plate rotating shaft 3-4 rotates reversely, the swing arm 3-5 drives the toilet hole cover plate 3-3 to turn reversely and reset, and when the toilet hole cover plate 3-3 is positioned in the toilet hole and the toilet hole 3-2 is completely closed, the cover plate motor or the cover plate electric turbine pair 3-8 is closed.
When a person needs to move from the wheelchair to the bed, the person sits on the wheelchair, moves the wheelchair to the bedside, and adjusts the height of the supporting legs 9 to enable the seat plate 3 and the bed to be located at the same height; meanwhile, the handrail driving mechanism drives the handrail 5-1 to descend, so that the handrail 5-1 descends to the same height with the seat plate 3; the worm gear speed reducer I15 is started to drive the spline transmission rod 17 to rotate, and the spline transmission rod 17 drives the back plate 7 to rotate, so that the back plate 7 moves towards the direction which is positioned on the same horizontal line with the seat plate 3; meanwhile, the turbine worm speed reducer II20 is started to drive the leg plate spline transmission rod 21 to rotate, and the leg plate spline transmission rod 21 drives the leg support plate 11 to rotate, so that the leg support plate 11 moves towards the direction which is the same with the horizontal line of the seat plate 3; when the back plate 7, the seat plate 3 and the leg support plate 11 are positioned on the same horizontal line, the turbine worm speed reducer I15 and the turbine worm speed reducer II20 stop operating, and the back plate 7, the seat plate 3 and the leg support plate 11 are maintained in the same horizontal line state due to the self-locking performance of the turbine worm; at the moment, a person with a little mobility can slowly move from the wheelchair to the bed; if the person who does not have the mobility ability completely, with the help of an outsider, the person sitting on the wheelchair is pushed to the bed from the wheelchair in parallel, and then slowly moves on the bed.
When a person wants to sit on the wheelchair from the bed, the wheelchair is placed beside the bed, the height of the wheelchair is adjusted to be flush with the height of the bed, the wheelchair is adjusted to the state that the back plate 7, the seat plate 3 and the leg support plate 11 are kept at the same horizontal line, and then the person sitting on the wheelchair can slowly move to the wheelchair; or a person needing to take the wheelchair is slowly pushed onto the wheelchair by the aid of the force of an outsider, after the person lies on the wheelchair, the turbine worm speed reducer I15 is started to drive the spline transmission rod 17 to rotate, the spline transmission rod 17 drives the back plate 7 to turn over, so that the back plate 7 and the seat plate 3 form a certain angle, and when the back plate 7 and the seat plate 3 reach a proper sitting angle, the turbine worm speed reducer I15 stops acting;
when the worm gear speed reducer I15 acts, the worm gear speed reducer II20 acts synchronously to drive the leg plate spline transmission rod 21 to act, the leg plate spline transmission rod 21 drives the leg support plate 11 to rotate, and when the angle between the leg support plate 11 and the seat plate 3 reaches the angle suitable for a person sitting on the wheelchair, the worm gear speed reducer II20 stops acting.
In addition, the invention can also realize the walking training of people, when needing to carry out the walking training, firstly, the pedal 12 is folded towards the direction of the leg support plate 11, and the worm gear speed reducer II20 drives the leg support plate 11 to be folded towards the direction of the seat plate 3; then the worm gear speed reducer I15 drives the back plate 7 to turn over, so that the back plate 7 and the seat plate 3 are positioned on the same plane in the vertical direction; the back of the person is supported, meanwhile, the driving mechanism of the seat plate 3 drives the seat plate 3 to turn over, space is reserved for standing of the person, and at the moment, the person can try to perform subsequent walking training under the support of the wheelchair.

Claims (6)

1. The utility model provides a wheelchair with liftable landing leg which characterized in that: the multifunctional toilet seat comprises a seat plate capable of using as a toilet, wherein two opposite sides of the seat plate are respectively provided with a supporting leg, the upper ends of the two supporting legs are respectively provided with a lifting handrail, the bottoms of the two supporting legs are respectively provided with a roller wheel, one end of the seat plate is connected with a back plate through a spline transmission rod, the other end of the seat plate is connected with the upper end of a leg supporting plate, and the lower end of the leg supporting plate is connected with a pedal plate;
the supporting leg comprises a supporting block, a cavity is formed in the center of the supporting block along the vertical direction, a sliding block is embedded in the cavity, a driving mechanism A is further arranged in the cavity and connected with the sliding block, and a handrail is arranged above the sliding block; the bottom two ends of the supporting block are respectively provided with a roller.
2. The wheelchair with liftable legs of claim 1, wherein: the driving mechanism A comprises a motor A, a main shaft of the motor A is connected with the lower end of a lead screw A, a nut is coaxially sleeved on the lead screw A, and the outer wall of the nut is fixedly connected in a sliding block.
3. The wheelchair with liftable legs of claim 1, wherein: and a driving mechanism B is arranged in the sliding block and connected with the handrail.
4. The wheelchair with liftable legs as claimed in claim 3, wherein: the driving mechanism B comprises a motor B, a main shaft of the motor B is connected with the lower end of a lead screw B, a hollow sleeve rod is coaxially connected onto the lead screw B, the upper end of the lead screw B extends into the hollow sleeve rod from the lower end of the sleeve rod, the inner wall of the sleeve rod is connected with the lead screw B in a screwing mode, and the upper end of the sleeve rod is connected with a handrail.
5. The wheelchair with liftable legs of claim 1, wherein: the bottom surface of the supporting block is of an inverted V-shaped structure.
6. The wheelchair with liftable legs of claim 1, wherein: the two opposite sides of the seat plate are respectively connected with the two support legs through support shafts.
CN202110597588.3A 2021-05-31 2021-05-31 Wheelchair with liftable supporting legs Pending CN113350058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110597588.3A CN113350058A (en) 2021-05-31 2021-05-31 Wheelchair with liftable supporting legs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110597588.3A CN113350058A (en) 2021-05-31 2021-05-31 Wheelchair with liftable supporting legs

Publications (1)

Publication Number Publication Date
CN113350058A true CN113350058A (en) 2021-09-07

Family

ID=77528319

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110597588.3A Pending CN113350058A (en) 2021-05-31 2021-05-31 Wheelchair with liftable supporting legs

Country Status (1)

Country Link
CN (1) CN113350058A (en)

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