CN113797033B - Lying-posture-adjustable electric wheelchair - Google Patents

Lying-posture-adjustable electric wheelchair Download PDF

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Publication number
CN113797033B
CN113797033B CN202111076177.6A CN202111076177A CN113797033B CN 113797033 B CN113797033 B CN 113797033B CN 202111076177 A CN202111076177 A CN 202111076177A CN 113797033 B CN113797033 B CN 113797033B
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CN
China
Prior art keywords
assembly
rod
seat
frame
pedal
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Active
Application number
CN202111076177.6A
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Chinese (zh)
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CN113797033A (en
Inventor
王春辰
王召伟
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Anhui Jinbaihe Medical Equipment Co ltd
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Anhui Jinbaihe Medical Equipment Co ltd
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Priority to CN202111076177.6A priority Critical patent/CN113797033B/en
Publication of CN113797033A publication Critical patent/CN113797033A/en
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Publication of CN113797033B publication Critical patent/CN113797033B/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1051Arrangements for steering
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1056Arrangements for adjusting the seat
    • A61G5/1067Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1056Arrangements for adjusting the seat
    • A61G5/1075Arrangements for adjusting the seat tilting the whole seat backwards
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/12Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/125Rests specially adapted therefor, e.g. for the head or the feet for arms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/12Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128Rests specially adapted therefor, e.g. for the head or the feet for feet

Abstract

The electric wheelchair with the adjustable lying posture comprises a chassis assembly, wherein the seat assembly comprises an outer frame, a groove is formed in the middle of the front part of the outer frame, a pedal is rotatably connected in the groove, a torsion spring is arranged at a rotating joint of the groove, the armrest assembly comprises an armrest plate and a rotating adjusting assembly, the rotating adjusting assembly is arranged on internal threads of the armrest plate and connected with the pedal through a traction rope, the rotating adjusting assembly is used for driving the stirring plate to rotate upwards, and the torsion spring is used for driving the pedal to rotate downwards for resetting; according to the invention, the pedal plate can be driven to rotate upwards by rotating the adjusting component, so that the pedal plate can also follow the adjusting angle when the seat component and the backrest component rotate to change the angle, the comfort level of placing the two legs of a user is better, and the two legs are prevented from keeping a bending angle for a long time and being crisp; the rotation adjusting component is arranged on the armrest plate, so that the user can directly operate the operation without bending down, and the operation is simple and convenient.

Description

Lying-posture-adjustable electric wheelchair
Technical Field
The invention belongs to the technical field of wheelchairs, and particularly relates to an electric wheelchair with an adjustable lying posture.
Background
The electric wheelchair is mainly used for a wheelchair driven by electric power, can move forwards, backwards and turn, can be used indoors and outdoors, and is easy and convenient to operate. However, the electric wheelchair on the market generally has fixed backrest angle, and can cause extra soreness and discomfort on the waist and the back if sitting for a long time.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides an electric wheelchair with adjustable lying posture, which has the following specific technical scheme:
the utility model provides an electric wheelchair with adjustable lying posture, includes the chassis subassembly, the internally mounted of chassis subassembly has the battery, front end bottom mounting front wheel subassembly, rear end bottom mounting rear wheel subassembly of chassis subassembly, the top interval of chassis subassembly is equipped with the seat subassembly, install electric putter between chassis subassembly, the seat subassembly, electric putter's bottom rotates the rear end of connecting chassis subassembly, top rotation connection seat subassembly, electric putter is the junction with the seat subassembly, electric putter is used for promoting the seat subassembly round the point rotation;
the seat assembly comprises an outer frame, a groove is formed in the middle of the front part of the outer frame, a pedal is rotatably connected in the groove, a torsion spring is arranged at the rotating joint, the armrest assembly comprises an armrest plate and a rotating adjusting assembly, the rotating adjusting assembly is arranged on internal threads of the armrest plate and is connected with the pedal through a traction rope, the rotating adjusting assembly is used for driving the stirring plate to rotate upwards, and the torsion spring is used for driving the pedal to rotate downwards for resetting;
a floatable rear locking rod is arranged between the rear part of the bottom surface of the seat assembly and the chassis assembly, and a front locking rod is arranged between the front end of the bottom of the seat assembly and the chassis assembly.
Further, rotating adjusting part includes screw rod, connector, rotating plate and haulage rope, second regulation hole, first regulation hole have been seted up to the inside of handrail board, first regulation hole communicates in the front end of second regulation hole, first regulation hole is the pipe form, the second regulation hole is upper and lower open-ended rectangle structure, the screw rod spiral runs through first regulation hole, connector, the other end are equipped with the rotating plate to the one end rotation of screw rod, the rotating plate is arranged in the second regulation hole, the terminal surface of connector is equipped with the top of haulage rope, the bottom winding of haulage rope is on the rotating post.
Further, the seat assembly further comprises a supporting frame and a reinforcing rod, the outer frame is rectangular, the supporting frame is arranged on the bottom face of the outer frame, the reinforcing rod is fixedly connected with the front side of the bottom end of the supporting frame, the reinforcing rod extends to the front side, the end part of the reinforcing rod is attached to the abutting pedal, and the rear side of the bottom end of the supporting frame is rotationally connected with the electric push rod.
Further, the support frame extends downwards in a forward inclined mode, the support frame is shaped, and two ends of the support frame are fixedly connected with the bottom surface of the outer frame.
Further, the chassis assembly comprises side plates, a front bracket and a rear bracket; the front support is vertically arranged at the front ends of the inner walls of the two side plates, the rear support is arranged at the rear ends of the inner walls of the two side plates, and the bottom end of the electric push rod is rotationally connected with the rear support.
Further, the back of the backrest frame is provided with a gas spring, the top end of the gas spring is rotationally connected to the top of the back of the backrest frame, and the bottom end of the gas spring is rotationally connected to the top surface of the rear part of the outer frame.
Further, install floatable back locking lever between the rear portion bottom surface of outer frame, the back locking lever includes movable rod, sleeve pipe and spring, telescopic bottom rotates and connects the back support, telescopic internally mounted has the spring, the bottom slip embedding of movable rod is in the sleeve pipe, the top of movable rod rotates the rear portion bottom surface of connecting outer frame.
Further, a front locking rod is arranged between the reinforcing rod and the front support, and the bottom end of the front locking rod is rotationally connected with the front support, and the top end of the front locking rod is clamped and embedded in the bottom surface of the reinforcing rod.
Further, the back of the pedal is fixedly connected with a connecting frame, the top end of the connecting frame is fixedly connected to the bottom surface of the front end of the outer frame, and the bottom end of the reinforcing rod is fixedly connected with the connecting frame.
The beneficial effects of the invention are as follows:
1. when the seat needs to be laid down, the electric push rod can push the seat assembly to rotate upwards around the point A, so that a passenger can lie down for rest;
2. the pedal can be driven to rotate upwards by rotating the adjusting component, so that the pedal can also follow the adjusting angle when the seat component and the backrest component rotate to change the angle, the comfort level of placing the two legs of a user is better, and the two legs are prevented from keeping a bending angle for a long time and being crisp; the rotation adjusting component is arranged on the armrest plate, so that the user can directly operate the operation without bending down, and the operation is simple and convenient.
Drawings
FIG. 1 is a schematic view showing the overall rear view of the reclining position-adjustable electric wheelchair of the present invention;
FIG. 2 is a schematic diagram showing the overall front view of the reclining position-adjustable electric wheelchair of the present invention;
FIG. 3 shows a schematic view of the front lock lever structure of the present invention;
FIG. 4 shows a schematic view of the rear lock lever structure of the present invention;
FIG. 5 is a schematic view showing the overall stowage state of the wheelchair of the present invention;
FIG. 6 is a schematic view showing a rotation state structure of a back rest of the present invention;
FIG. 7 shows a schematic view of the overall lying structure of the wheelchair of the present invention;
FIG. 8 is a schematic view of the operation of the rotary adjustment assembly of the present invention;
the figure shows: 1. a seat assembly; 11. an outer frame; 12. a support frame; 13. a reinforcing rod; 2. a backrest frame; 3. a gas spring; 4. a handrail assembly; 41. a handrail plate; 411. a first adjustment aperture; 412. a second adjustment aperture; 42. rotating the adjusting component; 421. a screw; 422. a connector; 423. a rotating plate; 424. a traction rope; 5. an operation seat; 6. a chassis assembly; 61. a side plate; 62. a front bracket; 63. a rear bracket; 64. a front lock lever; 7. an electric push rod; 8. a foot pedal; 81. a connecting frame; 811. a rotating column; 82. a baffle; 9. a rear lock lever; 91. a movable rod; 92. a sleeve; 93. a spring; 9a, a front wheel assembly; 9b, rear wheel assembly; 9c, a storage battery.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1-2, the lying-posture adjustable electric wheelchair comprises a chassis assembly 6, a storage battery 9c is arranged in the chassis assembly 6, a front wheel assembly 9a is arranged at the bottom of the front end of the chassis assembly 6, a rear wheel assembly 9b is arranged at the bottom of the rear end of the chassis assembly 6, seat assemblies 1 are arranged at intervals on the top of the chassis assembly 6, an electric push rod 7 is arranged between the chassis assembly 6 and the seat assemblies 1, the bottom end of the electric push rod 7 is rotatably connected with the rear end of the chassis assembly 6, the top end of the electric push rod is rotatably connected with the seat assembly 1, the joint of the electric push rod 7 and the seat assembly 1 is a point A, and the electric push rod 7 is used for pushing the seat assembly 1 to rotate around the point A; when the seat needs to be laid down, the electric push rod can push the seat assembly to rotate upwards around the point A, so that a passenger can lie down for rest;
the telescopic armrest assemblies 4 are symmetrically arranged on two sides of the seat assembly 1; the telescopic armrest assembly can support the arms of passengers, and the telescopic mode is a supporting tube and sleeve structure, so that telescopic adjustment is facilitated;
the end part of the armrest assembly 4 is provided with an operation seat 5, a storage battery 9c is arranged in the chassis assembly 6, and the storage battery 9c, the operation seat 5 and the electric push rod 7 are electrically connected; the telescopic movement of the electric push rod can be controlled through a switch on the operation seat, and the electric push rod can jack up the seat assembly; the storage battery can supply power for the equipment;
the top surface of the rear end of the seat assembly 1 is rotatably connected with a backrest frame 2 which can support the back of a passenger;
the seat assembly 1 comprises an outer frame 11, a groove is formed in the middle of the front part of the outer frame 11, a pedal 8 is rotatably connected in the groove, a torsion spring is arranged at the rotary joint of the pedal 8, the armrest assembly 4 comprises an armrest plate 41 and a rotary adjusting assembly 42, the rotary adjusting assembly 42 is arranged in an internal thread of the armrest plate 41, the rotary adjusting assembly 42 is connected with the pedal 8 through a traction rope 424, the rotary adjusting assembly 42 is used for driving the pedal 8 to rotate upwards, and the torsion spring is used for driving the pedal 8 to rotate downwards to reset; the pedal can be driven to rotate upwards by rotating the adjusting component, so that the pedal can also follow the adjusting angle when the seat component and the backrest component rotate to change the angle, the comfort level of placing the two legs of a user is better, and the two legs are prevented from keeping a bending angle for a long time and being crisp; the rotation adjusting component is arranged on the armrest plate, so that the operation of a user can be directly operated without bending down, and the operation is simple and convenient;
the front end or the rear end of the pedal plate 8 is vertically provided with a baffle 82 which can block and support the feet;
the top end of the pedal plate 8 is provided with a connecting frame 81, the top end of the connecting frame is vertically provided with a rotating column 811, the rotating column 811 is rotationally embedded in the groove, and a torsion spring is arranged at the rotationally embedded position;
a floatable rear lock lever 9 is mounted between the floor rear of the seat assembly 1 and the chassis assembly 6, and a front lock lever 64 is mounted between the bottom front end of the seat assembly 1 and the chassis assembly 6.
As shown in fig. 8, the rotating adjusting assembly 42 includes a screw 421, a connector 422, a rotating plate 423, and a pulling rope 424, wherein a second adjusting hole 412 and a first adjusting hole 411 are formed in the armrest plate 41, the first adjusting hole 411 is communicated with the front end of the second adjusting hole 412, the first adjusting hole 411 is in a circular tube shape, the second adjusting hole 412 is in a rectangular structure with an upper opening and a lower opening, the screw 421 is threaded through the first adjusting hole 411, one end of the screw 421 is rotatably connected with the connector 422, the other end is provided with the rotating plate 423, the rotating plate 423 is disposed in the second adjusting hole 412, the end surface of the connector 422 is provided with the top end of the pulling rope 424, and the bottom end of the pulling rope 424 is fixedly connected with the rotating post 811; when the angle of the pedal is required to be adjusted, the rotating plate is rotated, so that the screw rod is driven to gradually rotate to leave the first adjusting hole and enter the second adjusting hole, the screw rod drives the connector to move together when rotating, and meanwhile, the connector and the screw rod relatively rotate; the connector drives the traction rope to be upwards retracted into the first adjusting hole, then drives the pedal to rotate upwards, and the pedal compresses the torsion spring when rotating, so that the angle adjustment is realized, and the screw rod is matched with the threads of the first adjusting hole, so that the pedal is positioned;
when the pedal is required to reset, the rotating plate is reversely rotated, the screw rod is retracted into the first adjusting hole, and the torsion spring drives the pedal to rotate downwards for resetting.
As shown in fig. 2, the seat assembly 1 includes an outer frame 11, a supporting frame 12, and a reinforcing rod 13, wherein the outer frame 11 is rectangular, the bottom surface of the outer frame 11 is provided with the supporting frame 12, the front side of the bottom end of the supporting frame 12 is fixedly connected with the reinforcing rod 13, the reinforcing rod 13 extends to the front side, the end of the reinforcing rod 13 is attached to the abutting pedal 8, and the rear side of the bottom end of the supporting frame 12 is rotatably connected with the electric push rod 7; the outer frame is rectangular frame structure, and support frame, stiffener can support the outer frame jointly, guarantee the overall structure intensity of outer frame, simultaneously, the stiffener can form triangular structure with even frame, outer frame, guarantee the supporting strength.
As shown in fig. 2-3, the supporting frame 12 extends obliquely downward toward the front side, the supporting frame 12 is U-shaped, and two ends of the supporting frame 12 are fixedly connected to the bottom surface of the outer frame 11; the U-shaped frame of the inclined structure can be fixedly connected with the rectangular supporting frame, and the inclined part extends to the front part, so that the seat assembly can be conveniently rotated upwards, and the force application of the electric push rod is simpler and more convenient.
As shown in fig. 2, the chassis assembly 6 includes a side plate 61, a front bracket 62, and a rear bracket 63; the front support 62 is vertically arranged at the front ends of the inner walls of the two side plates 61, the rear support 63 is arranged at the rear ends of the inner walls of the two side plates 61, and the bottom end of the electric push rod 7 is rotationally connected with the rear support 63; the side plates, the front support and the rear support are connected into a whole, so that a firm bottom supporting structure can be formed.
As shown in fig. 1, the back of the backrest 2 is provided with a gas spring 3, the top end of the gas spring 3 is rotatably connected to the top of the back of the backrest 2, and the bottom end of the gas spring 3 is rotatably connected to the top surface of the back of the outer frame 11; the gas spring can play a role in supporting, buffering, braking, height adjustment, angle adjustment and other industrial accessories. It is composed of the following parts: the device comprises a pressure cylinder, a piston rod, a piston, a sealing guide sleeve and a filler; the gas spring can ensure that the backrest frame can rotate to a required angle and stay at a specified angle, so that the backrest support is more flexible and changeable.
As shown in fig. 4, a floatable rear locking rod 9 is installed between the rear bottom surface of the outer frame 11 and the rear bracket 63, the rear locking rod 9 includes a movable rod 91, a sleeve 92 and a spring 93, the bottom end of the sleeve 92 is rotatably connected with the rear bracket 63, the spring 93 is installed in the sleeve 92, the bottom end of the movable rod 91 is slidably embedded in the sleeve 92, and the top end of the movable rod 91 is rotatably connected with the rear bottom surface of the outer frame 11; the back locking rod can support and position the backrest frame from the rear part, and meanwhile, the backrest frame can be guaranteed to be normally rotated and adjusted; when the outer frame rotates upwards, the movable rod is driven to extend outwards, the spring is lengthened, the lengthened spring can ensure that the seat assembly rotates downwards, the movable rod can be rapidly driven to be retracted into the sleeve, and rapid reset is realized; when the seat assembly rotates upwards to a limit, the rear locking rod can be supported and positioned from the rear, so that the safety of the seat assembly is ensured;
as shown in fig. 3, a front locking rod 64 is installed between the reinforcing rod 13 and the front bracket 62, the bottom end of the front locking rod 64 is rotatably connected with the front bracket 62, and the top end is embedded in the bottom surface of the reinforcing rod 13 in a clamping manner; the design of preceding locking lever can improve the supporting stability to the seat subassembly of packing up the state, and the block connection can realize anticreep connection, avoids the seat subassembly to rock, and the tip atress of amortization electric putter guarantees the stability of electric putter junction.
The back of the pedal plate 8 is fixedly connected with a connecting frame 81, the top end of the connecting frame 81 is fixedly connected to the bottom surface of the front end of the outer frame 11, and the bottom end of the reinforcing rod 13 is fixedly connected with the connecting frame 81.
The invention is implemented by:
as shown in fig. 5, in a daily state, the seat assembly 1 is retracted onto the chassis assembly 6, and the top end of the front locking rod 64 is clamped and embedded into the reinforcing rod 13, so that the seat assembly 1 and the chassis assembly 6 are connected into a whole, and the overall strength is ensured;
as shown in fig. 6, when the backrest angle needs to be changed, the handle on the gas spring 3 is pulled to enable the backrest frame 2 to be adjusted in a backward rotation mode, and when the backrest frame rotates to a designated angle, the handle is pressed down, so that the locking and positioning of the gas spring and the backrest frame can be realized;
as shown in fig. 7, when the user needs to lie down, the clamping head on the reinforcing rod 13 is pressed down, so that the reinforcing rod 13 is separated from the front locking rod 64, the electric push rod 7 drives the supporting frame 12, and then drives the outer frame 11 to rotate upwards around the point a, and when the outer frame rotates, the rear end of the outer frame 11 pushes the movable rod 91 downwards, and then the spring 93 is compressed, so that the rotation of the seat assembly 1 is more gentle.
The aluminum alloy intelligent electric wheelchair has the advantages that the angle can be freely adjusted by electric remote control, the tradition is overturned, the seat angle can be electrically adjusted, the backrest angle can also be manually adjusted, and a user can freely adjust the angle according to the comfort degree of the user until the angle is adjusted to the optimal angle; meanwhile, the automobile is waterproof, anti-electricity and anti-interference, the automobile can be safely parked by loosening hands, the automobile is provided with armrests with adjustable height and width, the height of the pedals is adjusted, and the front wheels adopt a damping system and honeycomb wheels, so that the driving feeling is effectively improved, the comfort and safety coefficient of a user are improved, and hidden danger does not exist when the automobile goes alone;
the backrest angle adjusting principle of the electric wheelchair is as follows:
1. the electric wheelchair realizes the backrest angle adjusting function through the structural member and the multi-connecting rod structure.
2. Through the spanner manual regulation of gas spring for gas spring carries out corresponding regulation in its stroke scope, and back frame M carries out the rotation regulation of different angles along with the rotation point, thereby reaches the required comfortable back angle of user.
Electric wheelchair seat angle adjustment principle:
1. the electric wheelchair realizes the function of adjusting the angle of the chair through the structural member and the multi-connecting-rod structure.
2. Through remote control of the remote control key, the electric push rod is correspondingly adjusted in the travel range, and the seat assembly is rotationally adjusted at different angles along with the rotating point, so that the comfortable seat angle required by a user is achieved.
The width and height adjustment principle of the armrests of the electric wheelchair:
1. the armrest component can realize the height adjusting function by adjusting and fixing the plum blossom knob.
2. The handrail component can realize the width adjusting function through the adjustment and fixation of the plum blossom knob.
It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. An electric wheelchair with adjustable lying posture is characterized in that: the electric bicycle comprises a chassis assembly, wherein a storage battery is arranged in the chassis assembly, a front wheel assembly is arranged at the bottom of the front end of the chassis assembly, a rear wheel assembly is arranged at the bottom of the rear end of the chassis assembly, seat assemblies are arranged at the top of the chassis assembly at intervals, an electric push rod is arranged between the chassis assembly and the seat assemblies, the bottom end of the electric push rod is rotationally connected with the rear end of the chassis assembly, the top end of the electric push rod is rotationally connected with the seat assembly, the joint of the electric push rod and the seat assembly is a point, and the electric push rod is used for pushing the seat assembly to rotate around the point;
the telescopic handrail components are symmetrically arranged on two sides of the seat component, an operation seat is arranged at the end part of the handrail component, and the storage battery, the operation seat and the electric push rod are electrically connected; the top surface of the rear end of the seat assembly is rotationally connected with a backrest frame;
the seat assembly comprises an outer frame, a groove is formed in the middle of the front part of the outer frame, a pedal is rotatably connected in the groove, a torsion spring is arranged at the rotating joint, the armrest assembly comprises an armrest plate and a rotating adjusting assembly, the rotating adjusting assembly is arranged on internal threads of the armrest plate and is connected with the pedal through a traction rope, the rotating adjusting assembly is used for driving the stirring plate to rotate upwards, and the torsion spring is used for driving the pedal to rotate downwards for resetting;
a floatable rear locking rod is arranged between the rear part of the bottom surface of the seat assembly and the chassis assembly, and a front locking rod is arranged between the front end of the bottom of the seat assembly and the chassis assembly;
the rotating adjusting component comprises a screw rod, a connector, a rotating plate and a traction rope, wherein a second adjusting hole and a first adjusting hole are formed in the handrail plate, the first adjusting hole is communicated with the front end of the second adjusting hole, the first adjusting hole is in a round tube shape, the second adjusting hole is of a rectangular structure with an upper opening and a lower opening, the screw rod spirally penetrates through the first adjusting hole, one end of the screw rod is rotationally connected with the connector, the other end of the screw rod is provided with the rotating plate, the rotating plate is arranged in the second adjusting hole, the end face of the connector is provided with the top end of the traction rope, and the bottom end of the traction rope is wound on a rotating column of the foot pedal;
the chassis assembly comprises a side plate, a front bracket and a rear bracket; the front support is vertically arranged at the front ends of the inner walls of the two side plates, the rear support is arranged at the rear ends of the inner walls of the two side plates, and the bottom end of the electric push rod is rotationally connected with the rear support;
the rear locking rod comprises a movable rod, a sleeve and a spring, wherein the bottom end of the sleeve is rotationally connected with a rear support, the spring is installed in the sleeve, the bottom end of the movable rod is slidably embedded in the sleeve, and the top end of the movable rod is rotationally connected with the bottom surface of the rear part of the outer frame.
2. The lying-posture-adjustable electric wheelchair according to claim 1, wherein: the seat assembly further comprises a supporting frame and a reinforcing rod, the outer frame is rectangular, the supporting frame is arranged on the bottom face of the outer frame, the reinforcing rod is fixedly connected to the front side of the bottom end of the supporting frame, the reinforcing rod extends to the front side, the end portion of the reinforcing rod is attached to the abutting pedal, and the rear side of the bottom end of the supporting frame is rotationally connected with the electric push rod.
3. The lying-posture-adjustable electric wheelchair according to claim 2, wherein: the support frame extends downwards towards the front side, the support frame is in a shape of a sheet, and two ends of the support frame are fixedly connected with the bottom surface of the outer frame.
4. A recumbent adjustable electric wheelchair according to claim 3, characterized in that: the back of the backrest frame is provided with a gas spring, the top end of the gas spring is rotationally connected to the top of the back of the backrest frame, and the bottom end of the gas spring is rotationally connected to the top surface of the rear part of the outer frame.
5. The lying-posture-adjustable electric wheelchair of claim 4, wherein: the bottom of the front locking rod is rotationally connected with the front support, and the top of the front locking rod is clamped and embedded in the bottom surface of the reinforcing rod.
6. The lying-posture-adjustable electric wheelchair of claim 5, wherein: the back of the foot pedal is fixedly connected with a connecting frame, the top end of the connecting frame is fixedly connected to the bottom surface of the front end of the outer frame, and the bottom end of the reinforcing rod is fixedly connected with the connecting frame.
CN202111076177.6A 2021-09-14 2021-09-14 Lying-posture-adjustable electric wheelchair Active CN113797033B (en)

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JP2005253534A (en) * 2004-03-09 2005-09-22 Suzuki Motor Corp Wheelchair
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CN202875648U (en) * 2012-10-22 2013-04-17 佛山市东方医疗设备厂有限公司 Adjustable type electrically powered wheelchair
CN204106379U (en) * 2014-08-12 2015-01-21 黄耀文 The electric wheelchair that a kind of seat is adjustable
CN107595490A (en) * 2017-07-27 2018-01-19 浙江佑仁智能机器人有限公司 A kind of electric wheelchair stretcher
CN108784948A (en) * 2017-05-03 2018-11-13 广东凯洋医疗科技集团有限公司 The semi-automatic seat of Pneumatic spring type, formula of lying multifunctional wheelchair
CN209301532U (en) * 2018-10-30 2019-08-27 长安大学 A kind of lifting pedal mechanism for rehabilitation wheelchair
CN110575325A (en) * 2019-05-06 2019-12-17 宜春学院 multifunctional wheelchair structure
CN211244157U (en) * 2019-10-12 2020-08-14 中国地质大学(武汉) Pedal height-adjustable's wheelchair
CN112426287A (en) * 2020-12-07 2021-03-02 高刚 Chair adjustable wheelchair
CN213346391U (en) * 2020-05-27 2021-06-04 季波 Cerebrovascular patient is with rest seat
CN113143612A (en) * 2021-04-28 2021-07-23 安徽金百合医疗器械有限公司 Multi-connecting-rod folding type electric wheelchair
CN213963997U (en) * 2020-12-07 2021-08-17 高刚 Chair adjustable wheelchair

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TW590768B (en) * 2003-05-12 2004-06-11 Advantek Taiwan Inc Wheelchair structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333681A (en) * 1979-11-16 1982-06-08 Nelson M Eugene Power operated reclining wheelchair
JP2005253534A (en) * 2004-03-09 2005-09-22 Suzuki Motor Corp Wheelchair
TW200420280A (en) * 2004-03-31 2004-10-16 Univ Chung Shan Medical Wheelchair with active aerobic pedal training device
CN2803329Y (en) * 2005-05-17 2006-08-09 王树成 Multifunction standing up wheel-chair
CN202875648U (en) * 2012-10-22 2013-04-17 佛山市东方医疗设备厂有限公司 Adjustable type electrically powered wheelchair
CN204106379U (en) * 2014-08-12 2015-01-21 黄耀文 The electric wheelchair that a kind of seat is adjustable
CN108784948A (en) * 2017-05-03 2018-11-13 广东凯洋医疗科技集团有限公司 The semi-automatic seat of Pneumatic spring type, formula of lying multifunctional wheelchair
CN107595490A (en) * 2017-07-27 2018-01-19 浙江佑仁智能机器人有限公司 A kind of electric wheelchair stretcher
CN209301532U (en) * 2018-10-30 2019-08-27 长安大学 A kind of lifting pedal mechanism for rehabilitation wheelchair
CN110575325A (en) * 2019-05-06 2019-12-17 宜春学院 multifunctional wheelchair structure
CN211244157U (en) * 2019-10-12 2020-08-14 中国地质大学(武汉) Pedal height-adjustable's wheelchair
CN213346391U (en) * 2020-05-27 2021-06-04 季波 Cerebrovascular patient is with rest seat
CN112426287A (en) * 2020-12-07 2021-03-02 高刚 Chair adjustable wheelchair
CN213963997U (en) * 2020-12-07 2021-08-17 高刚 Chair adjustable wheelchair
CN113143612A (en) * 2021-04-28 2021-07-23 安徽金百合医疗器械有限公司 Multi-connecting-rod folding type electric wheelchair

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