CN116459134B - A wheelchair walker - Google Patents

A wheelchair walker

Info

Publication number
CN116459134B
CN116459134B CN202310507170.8A CN202310507170A CN116459134B CN 116459134 B CN116459134 B CN 116459134B CN 202310507170 A CN202310507170 A CN 202310507170A CN 116459134 B CN116459134 B CN 116459134B
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CN
China
Prior art keywords
seat
block
locking
groove
plate
Prior art date
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Active
Application number
CN202310507170.8A
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Chinese (zh)
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CN116459134A (en
Inventor
吴焘
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Suzhou Diantie Industrial Design Co ltd
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Suzhou Diantie Industrial Design Co ltd
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Priority to CN202310507170.8A priority Critical patent/CN116459134B/en
Publication of CN116459134A publication Critical patent/CN116459134A/en
Application granted granted Critical
Publication of CN116459134B publication Critical patent/CN116459134B/en
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Classifications

    • 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 patients or disabled persons
    • 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
    • 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
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet

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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)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Rehabilitation Tools (AREA)

Abstract

本发明提供的轮椅助行器，包括座位支架、推杆、前支架、后支架，以及设置在座位支架上的座位，座位支架包括座位杆、座位横梁、加强杆；推杆底部与座位支架底部连接，前支架上端部与座位支架底部连接、下端部连接前轮组件，后支架上端部与座位杆后端部相连接、下端部连接后轮组件；座位包括座位板，以及连接在座位板上的靠背板，通过使座位板可转动地连接在座位支架上，使座位板的转动轴心线垂直于座位支架所在的平面并经过座位板的几何中心，使座位板的转动轴心线与推杆之间的距离大于座位板的转动半径，能够方便地通过座位板相对于座位支架的转动实现轮椅工作状态和助行器工作状态的切换，转换方便，使用者无需围绕轮椅助行器移动，安全性好。

The wheelchair walker provided by the present invention includes a seat frame, a push rod, a front frame, a rear frame, and a seat arranged on the seat frame, the seat frame includes a seat rod, a seat crossbeam, and a reinforcing rod; the bottom of the push rod is connected to the bottom of the seat frame, the upper end of the front frame is connected to the bottom of the seat frame, and the lower end is connected to the front wheel assembly, the upper end of the rear frame is connected to the rear end of the seat rod, and the lower end is connected to the rear wheel assembly; the seat includes a seat plate and a backrest plate connected to the seat plate, by making the seat plate rotatably connected to the seat frame, making the rotation axis of the seat plate perpendicular to the plane where the seat frame is located and passing through the geometric center of the seat plate, making the distance between the rotation axis of the seat plate and the push rod greater than the rotation radius of the seat plate, the wheelchair working state and the walker working state can be conveniently switched by rotating the seat plate relative to the seat frame, the conversion is convenient, the user does not need to move around the wheelchair walker, and the safety is good.

Description

Wheelchair walking aid
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a wheelchair walker.
Background
As is well known, wheelchairs and walkers are commonly used medical devices for patients with inconvenient legs and feet, the former is used for riding and moving of the patients, and the latter is used for rehabilitation exercise of the patients, so that most wheelchairs and walkers on the market are products in two different forms, and the patients need to prepare both wheelchairs and walkers in the rehabilitation process, so that the influence on the rehabilitation cost is great.
In order to solve the problem, medical equipment combining wheelchair functions and walker functions appears on the market, such as a wheelchair walker disclosed in China patent CN114681222A, but a seat in the scheme cannot rotate, a backrest plate is always positioned behind a seat plate, handrails serving as the walker are connected to the rear surface of the backrest plate, when the walker is used, the backrest plate is easy to block the travel of a user, the user needs to walk around to the front for riding, the user easily falls down in the bypassing process, the safety is poor, part of wheelchair walker is arranged in front of the seat, the wheelchair and the walker are converted through the disassembly of the handrails, the seat and other parts, the steps are complicated, the user needs to occupy both hands during operation, the user is difficult to finish independently, the humanized design is deficient, and the use of the user is inconvenient.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a wheelchair walker which is convenient to convert and good in safety.
In order to achieve the above purpose, the technical scheme adopted by the invention is that the wheelchair walker comprises:
the seat support comprises a seat rod, a seat cross beam and a reinforcing rod, wherein the seat rod extends along the front-back direction and is arranged at left and right intervals, the seat cross beam is connected to the front end part of the seat rod, and the reinforcing rod is connected to the middle part of the seat rod;
the push rod obliquely extends from front lower direction to rear upper direction, the bottom of the push rod is connected with a push rod cross beam, the push rod cross beam is connected with the bottom of the seat support and is positioned between the seat cross beam and the reinforcing rod, and the top of the push rod is connected with a handrail obliquely extending to front upper direction;
The front support extends obliquely from the front lower direction to the rear upper direction, the upper end part of the front support is connected with a front support beam, the front support beam is connected with the bottom of the seat support and positioned in front of the push rod beam, and the lower end part of the front support is connected with a front wheel assembly;
The rear support extends obliquely from the lower back to the upper front, the upper end of the rear support is connected with the rear end of the seat rod, and the lower end of the rear support is connected with a rear wheel assembly;
a seat disposed on the seat support;
The seat comprises a seat plate extending along the front-back direction, and a back plate connected to the seat plate, the seat plate is rotatably connected to the seat support, the rotation axis of the seat plate is perpendicular to the plane of the seat support and passes through the geometric center of the seat plate, the distance between the rotation axis of the seat plate and the push rod is larger than the rotation radius of the seat plate, the seat plate enables the wheelchair walker to change between a wheelchair working state and a walker working state through rotation relative to the seat support, and the wheelchair walker further comprises a seat locking mechanism for locking the relative positions of the seat plate and the seat support.
Preferably, the axis of rotation of the seat plate also passes through the center of gravity of the wheelchair walker.
Preferably, the backboard is rotatably connected to the seat board, and when the seat board rotates relative to the seat support, the backboard is attached to the seat board by rotation, and the seat further comprises a backboard locking mechanism for limiting the relative position of the backboard and the seat board.
Preferably, the seat locking mechanism comprises a toggle plate and a locking lug, one end part of the toggle plate is rotatably connected to the lower surface of the seat plate, the other end part of the toggle plate is outwards and downwards inclined to form a free end, the locking lug is connected to the lower surface of the toggle plate and is far away from the free end, the rotation axis of the toggle plate and the extending direction of the locking lug are parallel and perpendicular to the rotation axis of the seat plate, the toggle plate is provided with a locking working position and an unlocking working position, when the toggle plate is in the locking working position, the free end is far away from the seat plate, the locking lug is inserted into the plane where the seat support is located and abuts against the seat cross beam or the reinforcing rod, the relative position of the seat plate and the seat support is kept locked, when the toggle plate is in the unlocking working position, the free end is close to the seat plate, the locking lug is separated from the plane where the seat support is located, and the seat plate and the seat support can rotate relatively.
Further preferably, the seat locking mechanism further includes a first elastic member, both end portions of the first elastic member respectively abut against a lower surface of the seat plate and an upper surface of the toggle plate, and the first elastic member has a tendency to urge the toggle plate to change to the locking operation position.
Further preferably, the lower surface of the seat plate and/or the upper surface of the toggle plate is provided with a drop-preventing baffle or a drop-preventing groove for preventing the elastic member from being separated.
Still preferably, the seat support further comprises a cover plate, the rear end part of the cover plate is erected on the upper part of the reinforcing rod, the front end part of the cover plate is connected with the rear surface of the seat cross beam, a locking groove matched with the locking convex block is formed in the cover plate, and the locking groove comprises a front locking groove formed in the front end part of the cover plate and a rear locking groove formed in the rear end part of the cover plate.
Preferably, the wheelchair walker further comprises an L-shaped seat block, an L-shaped push rod block, an arc-shaped front support block and a linear connecting block, wherein the horizontal section of the seat block is connected between the seat cross beam and the reinforcing rod, the vertical section of the seat block is connected with the rear end part of the horizontal section and extends downwards, the middle part of the vertical section of the push rod block is connected with the push rod cross beam, the horizontal section of the push rod block extends forwards, the middle part of the front support block is connected with the front support cross beam, the opening of the front support block faces downwards and backwards, and the connecting block extends along the front and rear directions.
Still preferably, the middle part of the horizontal section of the seat block is rotatably connected with the rear end part of the front support block through a first rotating shaft, the lower end part of the front support block is rotatably connected with the front end part of the connecting block through a second rotating shaft, the rear end part of the connecting block is rotatably connected with the front end part of the horizontal section of the push rod block through a third rotating shaft, and the middle part of the push rod block is rotatably connected with the lower end part of the vertical section of the seat block through a fourth rotating shaft, so that the seat block, the push rod block, the front support block and the connecting block form a four-bar mechanism, and when the four-bar mechanism moves, the wheelchair walker can be driven to be converted between an unfolding state and a folding state.
Further preferably, the wheelchair walker further comprises a frame locking mechanism for locking the four-bar mechanism, the frame locking mechanism comprises a lock pin and a lock groove, the lock pin and the lock groove are respectively arranged on two adjacent parts of the four-bar mechanism, when the frame locking mechanism is locked, the lock pin is inserted into the lock groove, the relative positions of the parts in the four-bar mechanism are kept locked, and the wheelchair walker is kept in the unfolded state.
Still preferably, the locking groove is formed in an upper end face of the vertical section of the push rod block, the locking groove penetrates through two side faces of the vertical section of the push rod block and extends downwards, a waist-shaped groove extending in the vertical direction is formed in the rear end portion of the horizontal section of the seat block, the lock pin vertically penetrates through the waist-shaped groove in a vertically movable mode, and when the lock pin moves downwards to a limiting position, the lock pin is inserted into the locking groove.
Still preferably, the frame locking mechanism further comprises a driving unit for driving the lock pin to move up and down, the driving unit comprises an unlocking block which is arranged between the seat cross beam and the reinforcing rod in a back-and-forth movable manner, and an unlocking groove which is arranged at the rear end part of the unlocking block and is used for penetrating the lock pin, the unlocking groove obliquely extends from the back, the bottom of the unlocking groove is aligned with the bottom of the waist-shaped groove and the bottom of the locking groove when the unlocking block moves forward to a limit position, and the top of the unlocking groove is aligned with the top of the waist-shaped groove and is positioned above the locking groove when the unlocking block moves backward to the limit position.
Still preferably, the unlocking block is further provided with a horizontal groove for penetrating the first rotating shaft, the horizontal groove is located in front of the unlocking groove, and the length of the horizontal groove is equal to the distance of the front-back movement of the unlocking block.
Still preferably, the front end portion of the unlocking block is connected with a guide rod portion extending forward, the front end of the guide rod portion penetrates through the seat cross beam to form an unlocking button protruding outwards, a clamping groove extending along the front-rear direction is formed in the rear end portion of the guide rod portion, the clamping groove is communicated with the horizontal groove, a second elastic piece is arranged in the clamping groove, the front-rear end portion of the second elastic piece abuts against the front side wall of the clamping groove and the outer circumferential surface of the first rotating shaft respectively, and the second elastic piece has a trend of driving the unlocking block to move forward to a limit position.
Further preferably, the push rod block is provided with guide inclined surfaces extending obliquely downward at portions on both sides of the locking groove, and the lock pin can be guided into the locking groove through the guide inclined surfaces when the wheelchair walker is changed from the folded state to the unfolded state.
Still preferably, the seat block, the push rod block and the front support block are all two and are arranged at intervals along the front-rear direction, the seat block is positioned at the outer sides of the push rod block and the front support block, and the connecting block is positioned at the inner sides of the push rod block and the front support block.
Still preferably, the waist-shaped groove penetrates through two side surfaces of the horizontal section of the seat block, the unlocking groove and the horizontal groove penetrate through two side surfaces of the unlocking block, the lock pin penetrates through the unlocking block and the horizontal section of the seat block on two sides, the first rotating shaft penetrates through the unlocking block, and two end parts of the first rotating shaft are connected with the horizontal section of the seat block on two sides.
Still preferably, the wheelchair walker further comprises a pedal assembly, the pedal assembly comprises a pedal bracket rotatably connected to the inner side of the front bracket, and a pedal arranged on the pedal bracket, the pedal assembly has a folding working position and a unfolding working position, when the pedal assembly is in the folding working position, the pedal assembly, the front bracket and the front support beam are located on the same plane, and when the pedal assembly is in the unfolding working position, the pedal assembly is unfolded straight and located above the front wheel assembly.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. The wheelchair walker can be conveniently changed between a wheelchair working state and a walker working state through the rotation of the seat plate relative to the seat support, and the wheelchair walker is convenient to change.
2. When the wheelchair walker is used, the backrest plate can be rotated to the position right in front of the seat plate, the backrest plate can not block a user from running, and the user can sit by turning around the wheelchair walker when needing to rest, so that the wheelchair walker is not required to be moved, and the safety is good.
3. When the wheelchair walker is used as a walker, a user can be enabled to be as close to the gravity center of the wheelchair walker as possible, the front part of the wheelchair walker is prevented from tilting, and the safety is better.
4. When the wheelchair is used as a wheelchair, the wheelchair is free from difference with a normal wheelchair, and the user has good riding stability and strong high-grade feeling.
Drawings
Fig. 1 is a perspective view schematically showing a preferred embodiment of the present invention in a wheelchair operating state.
Fig. 2 is a perspective view schematically showing a preferred embodiment of the present invention in a walker operating state.
Fig. 3 is a left-hand schematic view of fig. 1.
Fig. 4 and 5 are schematic left-hand views of fig. 2, wherein the footrest assembly of fig. 4 is in a folded-up operative position, the footrest assembly of fig. 5 is in an unfolded operative position, and fig. 5 is partially cut away.
Fig. 6 is an exploded view of the three-dimensional assembly of fig. 3 with the seat, seat locking mechanism, cover plate removed.
Fig. 7 is a schematic view of the seat locking mechanism of fig. 5 after the seat has been removed.
Fig. 8 is a schematic left view of the seat and seat locking mechanism of fig. 4 in a folded state.
Fig. 9 is a partially enlarged schematic view at a in fig. 7.
Fig. 10 is an enlarged partial schematic view of the seat and seat locking mechanism of fig. 5.
10, A seat bracket; 11, a seat post; 12, a seat cross beam; the bicycle comprises a reinforcing rod, a cover plate, a front locking groove, a rear locking groove, a push rod, a cross rod, a handle, a front bracket, a front support, a front wheel assembly, a rear bracket, a rear wheel assembly, a seat plate, a front baffle, a back plate, a toggle plate, a free end, a front locking groove, a rear locking groove, a front locking lug, a front elastic member, a seat block, a front locking groove, a front locking lug, a front elastic member, a front locking groove, a rear locking groove, a front locking groove, a rear locking groove, a front locking bar, a rear locking, a front locking, a left locking and a left, a left locking, a right locking, a left locking, a right locking, a left, a right, a left, a right, a left, a locking, a pulling, a locking, a and a bicycle, a pedal, a and a bicycle, and a bicycle, a and a bicycle, and a front, and a bicycle, and a front, and a bicycle and, a bicycle and,.bicycle.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention will be more readily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
The front-back direction, the up-down direction, and the left-right direction in fig. 3 are the left-right, up-down, and inside-outside directions described in the present invention.
As shown in fig. 1 to 10, the wheelchair walker provided by the invention comprises a seat support 10, a push rod 20, a front support 30, a rear support 40 and a seat 50, wherein the seat support 10 comprises a seat rod 11, a seat cross beam 12 and a reinforcing rod 13, the seat rod 11 extends along the front-back direction and is arranged at intervals left and right, the seat cross beam 12 and the reinforcing rod 13 extend along the left-right direction, the seat cross beam 12 is connected to the front end part of the seat rod 11, and the reinforcing rod 13 is connected to the middle part of the seat rod 11; the push rod 20 obliquely extends from front lower direction to rear upper direction and is arranged at left and right intervals, the bottom of the push rod 20 is connected with a push rod cross beam 21, the push rod cross beam 21 is connected with the bottom of the seat bracket 10 and is positioned between the seat cross beam 12 and the reinforcing rod 13, and the top of the push rod 20 is connected with a handrail 22 obliquely extending from front upper direction; the front bracket 30 is obliquely extended from front lower to rear upper and is arranged at left and right intervals, the upper end part of the front bracket 30 is connected with a front supporting beam 31, the front supporting beam 31 extends along left and right directions, the front supporting beam 31 is connected with the bottom of the seat bracket 10 and is positioned in front of the push rod beam 21, the lower end part of the front bracket 30 is connected with a front wheel assembly 32, the rear bracket 40 is obliquely extended from rear lower to front upper, the upper end part of the rear bracket 40 is connected with the rear end part of the seat rod 11, further, the rear bracket 40, the seat rod 11 and the seat beam 12 are integrally bent and formed, the lower end part of the rear bracket 40 is connected with a rear wheel assembly 41, the seat 50 is arranged on the seat bracket 10, the seat 50 comprises a seat plate 51 extending along front and rear directions and a back plate 52 connected on the seat plate 51, the seat plate 51 is rotatably connected on the seat bracket 10, the rotation axis of the seat plate 51 is perpendicular to the plane of the seat bracket 10 and passes through the geometric center of the seat plate 51, the distance between the axis of rotation of the seat plate 51 and the push rod 20 is greater than 3-5cm of the radius of rotation of the seat plate 51, the seat plate 51 is changed between a wheelchair operating state and a walker operating state by rotation relative to the seat support 10, the back plate 52 is located directly behind the seat plate 51 when the wheelchair walker is in the wheelchair operating state, the back plate 52 is located directly in front of the seat plate 51 when the wheelchair walker is in the walker operating state, and the wheelchair walker further comprises a seat locking mechanism for locking the relative positions of the seat plate 51 and the seat support 10.
The advantages of this arrangement are that:
1. The wheelchair walker can be conveniently changed between a wheelchair working state and a walker working state through the rotation of the seat plate relative to the seat support, and the wheelchair walker is convenient to change.
2. When the wheelchair walker is used, the backrest plate can be rotated to the position right in front of the seat plate, the backrest plate can not block a user from running, and the user can sit by turning around the wheelchair walker when needing to rest, so that the wheelchair walker is not required to be moved, and the safety is good.
3. When the wheelchair walker is used as a walker, a user can be enabled to be as close to the gravity center of the wheelchair walker as possible, the front part of the wheelchair walker is prevented from tilting, and the safety is better.
4. When the wheelchair is used as a wheelchair, the wheelchair is free from difference with a normal wheelchair, and the user has good riding stability and strong high-grade feeling.
To further improve stability and safety in use, in this embodiment, the axis of rotation of the seat plate 51 also passes through the center of gravity of the wheelchair walker.
In order to facilitate the rotation of the seat plate 51 relative to the seat support 10, to avoid interference between the back plate 52 and the push rod 20 during the rotation, in this embodiment, the back plate 52 is rotatably connected to the seat plate, the axis of rotation of the back plate 52 is parallel to the horizontal plane and perpendicular to the axis of rotation of the seat plate 51, and when the seat plate 51 rotates relative to the seat support 10, the back plate 52 rotates and is attached to the seat plate 51, so that the edge of the back plate 52 is located in the seat plate 51, to avoid interference with the push rod 20, and the seat 50 further includes a back plate locking mechanism for defining the relative position of the back plate 52 and the seat plate.
To ensure that the user can complete the rotation of the seat plate 51 through one-hand operation, in this embodiment, the seat locking mechanism comprises a stirring plate 61 and a locking lug 62, one end part of the stirring plate 61 is rotatably connected to the lower surface of the seat plate 51 and is positioned at one side of the rotation axis of the seat plate 51, the other end part of the stirring plate 61 is outwards and downwards inclined to form a free end 611, the free end 611 does not exceed the edge of the seat plate 51, the locking lug 62 is connected to the lower surface of the stirring plate 61 and is far away from the free end 611, the rotation axis of the stirring plate 61 and the extending direction of the locking lug 62 are parallel and perpendicular to the rotation axis of the seat plate 51, the stirring plate 61 has a locking working position and an unlocking working position, when the stirring plate 61 is in the locking working position, the free end 611 is far away from the seat plate 51, the locking lug 62 is inserted into the plane of the seat bracket 10 and abuts against the seat cross beam 12 or the reinforcing rod 13, the relative position of the seat plate 51 and the seat bracket 10 keeps locked, when the stirring plate 61 is in the unlocking working position, the free end is close to the seat plate 51, the plane of the seat bracket 10 can rotate relative to the seat bracket 10; further, the seat locking mechanism also comprises a first elastic member 63, the first elastic member 63 is a pressure spring, two ends of the first elastic member 63 respectively support against the lower surface of the seat plate 51 and the upper surface of the toggle plate 61, the first elastic member 63 has a trend of driving the toggle plate 61 to change to a locking working position, meanwhile, the seat bracket 10 also comprises a cover plate 14, the rear end part of the cover plate 14 is arranged on the upper part of the reinforcing rod 13, the front end part of the cover plate 14 is connected with the rear surface of the seat beam 12, a locking groove matched with the locking convex block 62 is arranged on the cover plate 14, the locking grooves include a front locking groove 141 opened at the front end portion of the cover plate 14 and a rear locking groove 142 opened at the rear end portion of the cover plate 14.
The advantage of this arrangement is that when the seat plate 51 is rotated, only one hand is required to pull the free end 611 upwards to disengage the locking lug 62 from the front locking groove 141/the rear locking groove 142, and the seat plate 51 can be driven to rotate by swinging the free end 611, when the seat plate 51 rotates by a certain angle (equal to or greater than 15 degrees), the locking lug 62 cannot be pressed into the plane of the seat support 10 due to the blocking of the cover plate 14, at this time, the locking lug 62 can be continuously rotated to the opposite side by rotating the seat plate 51 by one hand, and when the locking lug 62 rotates in place, the locking lug 62 can be automatically pressed into the rear locking groove 142/the front locking groove 141 under the action of the first elastic member 63 to complete locking.
In order to prevent the first elastic member 63 from being separated, further, a drop-preventing baffle 511 is disposed on the lower surface of the seat plate 51, the drop-preventing baffle 511 is annular and covers the upper end portion of the first elastic member 63, and a drop-preventing groove 612 is disposed on the upper surface of the toggle plate 61, and the drop-preventing groove 612 is used for accommodating the lower end portion of the first elastic member 63.
In order to facilitate storage and reduce occupied space, the wheelchair walker further has a folding function, and specifically comprises an L-shaped seat block 71, an L-shaped push rod block 72, an arc-shaped front support block 73 and a linear connecting block 74, wherein the L-shaped seat block 71 is in a projection shape of each component in the left-right direction, the seat block 71 is provided with a horizontal section 711 and a vertical section 712, the horizontal section 711 of the seat block 71 is welded and connected between the seat cross beam 12 and the reinforcing rod 13, the vertical section 712 of the seat block 71 is connected at the rear end of the horizontal section 711 and extends downwards, the push rod block 72 is provided with a vertical section 721 and a horizontal section 722, the middle part of the vertical section 721 of the push rod block 72 is connected with the push rod cross beam 21 (after being clamped and welded) in a fixed manner, the horizontal section of the push rod block 72 extends forwards, the middle part of the front support block 73 is connected with the front support cross beam 31 (after being clamped and welded and fixed) in a fixed manner, the opening of the front support block 73 faces downwards and backwards, the connecting block 74 extends in the front-back direction, the middle part of the horizontal section 711 of the seat block 71 is rotationally connected with the rear end of the front support block 73 through a first rotating shaft 75, the lower end of the front support block 73 is rotationally connected with the second rotating shaft 74 through the lower rotating shaft 75 and the lower end of the rotating shaft 76 of the front support block 73 and the fourth rotating shaft 74, and the fourth rotating connection mechanism 72 can be rotationally connected with the front end part of the push rod 72 through the fourth rotating connection block 72 and the front end part of the connecting block 72 and the fourth rotating connection link mechanism 74.
To ensure the stability of the wheelchair walker in the unfolded state, the wheelchair walker further comprises a frame locking mechanism for locking the four-bar mechanism 79, wherein the frame locking mechanism comprises a lock pin 81 and a lock groove 82, the lock pin 81 and the lock groove 82 are respectively arranged on two adjacent parts of the four-bar mechanism 79, when the frame locking mechanism is locked, the lock pin 81 is inserted into the lock groove 82, the relative positions of the parts in the four-bar mechanism 79 are kept locked, the wheelchair walker is kept in the unfolded state, and when the frame locking mechanism is unlocked, the lock pin 81 is separated from the lock groove 82, and the parts in the four-bar mechanism 79 can relatively rotate, so that the wheelchair walker can be converted into the folded state.
Specifically, the lock groove 82 is formed on the upper end surface of the vertical section 721 of the push rod block 72, the lock groove 82 penetrates through both side surfaces of the vertical section 721 of the push rod block 72 and extends downward, the rear end portion of the horizontal section 711 of the seat block 71 is provided with a waist-shaped groove 713 extending in the up-down direction, the lock pin 81 is vertically penetrated in the waist-shaped groove 713 so as to be movable up-down, and when the lock pin 81 moves down to the limit position, the lock pin 81 is inserted into the lock groove 82.
To further improve the stability of the wheelchair walker in the unfolded state, the axis of the second rotation shaft 76, the axis of the third rotation shaft 77 and the axis of the fourth rotation shaft 78 are located on the same plane when the lock pin 81 is inserted into the lock groove 82.
In order to facilitate unlocking and improve the high-grade feeling of the wheelchair walker, in the present embodiment, the frame locking mechanism further includes a driving unit for driving the lock pin 81 to move up and down, the driving unit includes an unlocking block 831 provided between the seat cross beam 12 and the reinforcing rod 13 so as to be movable back and forth, and an unlocking groove 832 provided at a rear end portion of the unlocking block 831 for penetrating the lock pin 81, the unlocking groove 832 is inclined to extend obliquely from the rear lower side to the front upper side (the inclination angle is 45 degrees), when the unlocking block 831 moves forward to the limit position, the groove bottom of the unlocking groove 832 is aligned with the groove bottom of the waist-shaped groove 713 and the groove bottom of the lock groove 82, and when the unlocking block 831 moves backward to the limit position, the groove top of the unlocking groove 832 is aligned with the groove top of the waist-shaped groove 82 and is located above the lock groove 82, so that when the unlocking block 831 moves back and forth, the lock pin 81 can be driven to move up and down in the waist-shaped groove 713 through the unlocking groove 832.
Further, the unlocking block 831 is further provided with a horizontal groove 833 for penetrating the first rotating shaft 75, the horizontal groove 833 is located in front of the unlocking groove 832, the groove length of the horizontal groove 833 is equal to the distance of the front-back movement of the unlocking block 831, the front end portion of the unlocking block 831 is connected with a guide rod portion 834 extending forward, the guide rod portion 834 is a rod-shaped guide portion, the guide rod portion 834 and the unlocking block 831 are integrally formed, the front end of the guide rod portion 834 penetrates the seat beam 12 to form an outwardly protruding unlocking button 835, the front end portion of the guide rod portion 834 is penetrated on the seat beam 12 in a sliding manner, and the rear end portion of the unlocking block 831 is erected on the first rotating shaft 75 in a sliding manner, that is, the first rotating shaft 75 can not only play a role of enabling the seat block 71 and the front supporting block 73 to rotate mutually, but also can support the guide rod portion 834 and the unlocking block 831 to move forward and backward in a matching manner with the seat beam 12.
In order to facilitate the resetting, in the present embodiment, the rear end portion of the guide rod portion 834 is provided with a clamping groove 836 extending along the front-rear direction, the clamping groove 836 is communicated with the horizontal groove 833, a second elastic member 837 is disposed in the clamping groove 836, the second elastic member 837 is also a compression spring, the front and rear end portions of the second elastic member 837 respectively abut against the front side wall of the clamping groove 836 and the outer circumferential surface of the first rotating shaft 75, and the second elastic member 837 has a tendency to drive the unlocking piece 831 to move forward to the limit position, that is, the first rotating shaft 75 also has a function of supporting the second elastic member 837.
Further, the push rod block 72 is provided with guide inclined surfaces 723 extending obliquely downward at the both sides of the lock groove 82, and when the wheelchair walker is changed from the folded state to the unfolded state, the lock pins 81 can be guided into the lock groove 82 through the guide inclined surfaces 723, that is, when the four-bar linkage 79 rotates in place, the lock pins 81 can be automatically guided into the lock groove 82, thereby achieving the technical effect of automatic locking.
In order to make the structure of the four-bar linkage 79 more compact and improve the strength of the four-bar linkage 79, in this embodiment, the seat block 71, the push rod block 72 and the front support block 73 are two blocks and are arranged at intervals along the front-rear direction, the seat block 71 is located at the outer sides of the push rod block 72 and the front support block 73, the connecting block 74 is located at the inner sides of the push rod block 72 and the front support block 73, further, the waist-shaped groove 713 penetrates through two side surfaces of the horizontal section 711 of the seat block 71, the unlocking groove 832 and the horizontal groove 833 penetrate through two side surfaces of the unlocking block 831, the locking pin 81 penetrates through the unlocking block 831 and the horizontal section 711 of the seat block 71 on two sides, the first rotating shaft 75 penetrates through the unlocking block 831, and two ends of the first rotating shaft 75 are connected with the horizontal sections 711 of the seat block 71 on two sides.
To facilitate riding, in this embodiment, the wheelchair walker further includes a pedal assembly 90, where the pedal assembly 90 includes a pedal bracket 91 rotatably connected to the inner side of the front bracket 30, and a foot pedal 92 disposed on the pedal bracket 91, and the pedal assembly 90 has a folded operating position and an unfolded operating position, and when the pedal assembly 90 is in the folded operating position, the pedal assembly 90 is located on the same plane as the front bracket 30 and the front cross member 31, and when the pedal assembly 90 is in the unfolded operating position, the pedal assembly 90 is unfolded straight and located above and in front of the front wheel assembly 32.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims (17)

1.一种轮椅助行器，包括：1. A wheelchair walker, comprising: 包括座位杆、座位横梁、加强杆的座位支架，座位杆沿前后方向延伸并左右间隔设置，座位横梁连接在座位杆的前端部，加强杆连接在座位杆的中部；A seat support comprising a seat post, a seat crossbeam, and a reinforcing rod, wherein the seat post extends in a front-to-rear direction and is spaced apart from each other, the seat crossbeam is connected to the front end of the seat post, and the reinforcing rod is connected to the middle of the seat post; 自前下方向后上方倾斜延伸的推杆，其底部连接有与座位支架底部连接并位于座位横梁和加强杆之间的推杆横梁，其顶部连接有向前上方倾斜延伸的扶手；A push rod extending obliquely from the front lower portion to the rear upper portion, the bottom of which is connected to a push rod crossbeam connected to the bottom of the seat bracket and located between the seat crossbeam and the reinforcing rod, and the top of which is connected to an armrest extending obliquely forward and upward; 自前下方向后上方倾斜延伸的前支架，其上端部连接有与座位支架底部连接并位于推杆横梁前方的前支横梁，其下端部连接有前轮组件；A front bracket extending obliquely from the front lower portion to the rear upper portion, the upper end of which is connected to a front support beam connected to the bottom of the seat bracket and located in front of the push rod beam, and the lower end of which is connected to the front wheel assembly; 自后下方向前上方倾斜延伸的后支架，其上端部与座位杆后端部连接，其下端部连接有后轮组件；A rear bracket extending obliquely from the rear lower portion to the front upper portion, with an upper end portion connected to the rear end portion of the seat post and a lower end portion connected to the rear wheel assembly; 设置在座位支架上的座位；a seat disposed on a seat support; 其特征在于：Its characteristics are: 座位包括沿前后方向延伸并可转动地连接在座位支架上的座位板，以及连接在座位板上的靠背板，座位板的转动轴心线垂直于座位支架所在的平面并经过座位板的几何中心，该转动轴心线与推杆之间的距离大于座位板的转动半径，座位板通过相对于座位支架的转动使轮椅助行器在轮椅工作状态和助行器工作状态之间变换；The seat includes a seat plate extending in a front-to-rear direction and rotatably connected to a seat frame, and a backrest plate connected to the seat plate. The rotation axis of the seat plate is perpendicular to the plane on which the seat frame is located and passes through the geometric center of the seat plate. The distance between the rotation axis and the push rod is greater than the rotation radius of the seat plate. The seat plate rotates relative to the seat frame to switch the wheelchair walker between a wheelchair operating state and a walker operating state. 该轮椅助行器还包括用于将座位板和座位支架的相对位置锁定的座位锁定机构，其包括一端部转动连接在座位板下表面、另一端部向外向下倾斜延伸形成自由端的拨动板，和连接在拨动板下表面并远离自由端的锁定凸块，拨动板的转动轴心线、锁定凸块的延伸方向相平行并垂直于座位板的转动轴心线；拨动板具有锁定工作位置和解锁工作位置，在其处于锁定工作位置时，自由端与座位板相远离，锁定凸块插入座位支架所在的平面并抵紧座位横梁或加强杆，使座位板与座位支架的相对位置保持锁定，在其处于解锁工作位置时，自由端与座位板相靠拢，锁定凸块脱离座位支架所在的平面，使座位板与座位支架能够相对转动。The wheelchair walker also includes a seat locking mechanism for locking the relative position of the seat plate and the seat bracket, which includes a toggle plate with one end rotatably connected to the lower surface of the seat plate and the other end extending outward and downward to form a free end, and a locking protrusion connected to the lower surface of the toggle plate and away from the free end, the rotation axis of the toggle plate and the extension direction of the locking protrusion are parallel and perpendicular to the rotation axis of the seat plate; the toggle plate has a locking working position and an unlocking working position, when it is in the locking working position, the free end is away from the seat plate, the locking protrusion is inserted into the plane where the seat bracket is located and presses against the seat crossbeam or reinforcing rod, so that the relative position of the seat plate and the seat bracket remains locked, and when it is in the unlocking working position, the free end is close to the seat plate, the locking protrusion is separated from the plane where the seat bracket is located, so that the seat plate and the seat bracket can rotate relative to each other. 2.根据权利要求1所述的轮椅助行器，其特征在于：所述座位板的转动轴心线还经过所述轮椅助行器的重心。2. The wheelchair walker according to claim 1, wherein the rotation axis of the seat plate also passes through the center of gravity of the wheelchair walker. 3.根据权利要求1所述的轮椅助行器，其特征在于：所述靠背板转动连接在所述座位板上，在所述座位板相对于所述座位支架转动时，所述靠背板通过转动与所述座位板相贴合，所述座位还包括用于限定所述靠背板与所述座位板相对位置的靠背板锁定机构。3. The wheelchair walker according to claim 1 is characterized in that: the backrest board is rotatably connected to the seat board, and when the seat board rotates relative to the seat bracket, the backrest board is fitted with the seat board by rotation, and the seat further includes a backrest board locking mechanism for limiting the relative position of the backrest board and the seat board. 4.根据权利要求1所述的轮椅助行器，其特征在于：所述座位锁定机构还包括第一弹性件，所述第一弹性件的两端部分别抵紧所述座位板的下表面和所述拨动板的上表面，所述第一弹性件具有驱使所述拨动板变换至所述锁定工作位置的趋势。4. The wheelchair walker according to claim 1 is characterized in that the seat locking mechanism also includes a first elastic member, the two ends of which are respectively pressed against the lower surface of the seat plate and the upper surface of the toggle plate, and the first elastic member has a tendency to drive the toggle plate to change to the locked working position. 5.根据权利要求4所述的轮椅助行器，其特征在于：所述座位板的下表面和/或所述拨动板的上表面设有用于防止所述弹性件脱离的防脱挡板或防脱槽。5. The wheelchair walker according to claim 4, characterized in that the lower surface of the seat plate and/or the upper surface of the toggle plate are provided with an anti-slip baffle or an anti-slip groove for preventing the elastic member from detaching. 6.根据权利要求1所述的轮椅助行器，其特征在于：所述座位支架还包括盖板，所述盖板搭设在所述加强杆的上部，所述盖板的前端部与所述座位横梁的后表面相连接，所述盖板上开设有与所述锁定凸块相匹配的锁定槽，所述锁定槽包括开设在所述盖板前端部的前锁定槽和开设在所述盖板后端部的后锁定槽。6. The wheelchair walker according to claim 1 is characterized in that: the seat bracket also includes a cover plate, the cover plate is mounted on the upper part of the reinforcing rod, the front end of the cover plate is connected to the rear surface of the seat crossbeam, and the cover plate is provided with a locking groove matching the locking protrusion, the locking groove includes a front locking groove provided at the front end of the cover plate and a rear locking groove provided at the rear end of the cover plate. 7.根据权利要求1所述的轮椅助行器，其特征在于：所述轮椅助行器还包括L形的座位块、L形的推杆块、弧形的前支块及一字形的连接块，所述座位块的水平段连接在所述座位横梁与所述加强杆之间，所述座位块的竖直段连接在所述水平段的后端部并向下延伸，所述推杆块的竖直段的中部与所述推杆横梁相连接，所述推杆块的水平段向前延伸，所述前支块的中部与所述前支横梁相连接，所述前支块的开口朝向下后方，所述连接块沿前后方向延伸。7. The wheelchair walker according to claim 1 is characterized in that: the wheelchair walker also includes an L-shaped seat block, an L-shaped push rod block, an arc-shaped front support block and a straight-line connecting block, the horizontal section of the seat block is connected between the seat cross beam and the reinforcing rod, the vertical section of the seat block is connected to the rear end of the horizontal section and extends downward, the middle part of the vertical section of the push rod block is connected to the push rod cross beam, the horizontal section of the push rod block extends forward, the middle part of the front support block is connected to the front support cross beam, the opening of the front support block faces downward and rearward, and the connecting block extends in the front-to-back direction. 8.根据权利要求7所述的轮椅助行器，其特征在于：所述座位块水平段的中部与所述前支块的后端部通过第一转动轴转动连接，所述前支块的下端部通过第二转动轴与所述连接块的前端部转动连接，所述连接块的后端部通过第三转动轴与所述推杆块水平段的前端部转动连接，所述推杆块的中部通过第四转动轴与所述座位块竖直段的下端部转动连接，使所述座位块、所述推杆块、所述前支块和所述连接块构成四连杆机构，在所述四连杆机构运动时，能够带动所述轮椅助行器在展开状态和折叠状态之间变换。8. The wheelchair walker according to claim 7 is characterized in that: the middle part of the horizontal section of the seat block is rotatably connected to the rear end of the front support block through a first rotating shaft, the lower end of the front support block is rotatably connected to the front end of the connecting block through a second rotating shaft, the rear end of the connecting block is rotatably connected to the front end of the horizontal section of the push rod block through a third rotating shaft, and the middle part of the push rod block is rotatably connected to the lower end of the vertical section of the seat block through a fourth rotating shaft, so that the seat block, the push rod block, the front support block and the connecting block form a four-bar linkage, and when the four-bar linkage moves, it can drive the wheelchair walker to change between the unfolded state and the folded state. 9.根据权利要求8所述的轮椅助行器，其特征在于：所述轮椅助行器还包括用于锁定所述四连杆机构的车架锁定机构，所述车架锁定机构包括锁销和锁槽，所述锁销、所述锁槽分别设置在所述四连杆机构的相邻两部件上，在所述车架锁定机构锁定时，所述锁销插入所述锁槽，所述四连杆机构中各部件的相对位置保持锁定，所述轮椅助行器保持在所述展开状态。9. The wheelchair walker according to claim 8 is characterized in that: the wheelchair walker also includes a frame locking mechanism for locking the four-bar linkage mechanism, the frame locking mechanism includes a locking pin and a locking slot, the locking pin and the locking slot are respectively arranged on two adjacent components of the four-bar linkage mechanism, when the frame locking mechanism is locked, the locking pin is inserted into the locking slot, the relative positions of the components in the four-bar linkage mechanism remain locked, and the wheelchair walker remains in the deployed state. 10.根据权利要求9所述的轮椅助行器，其特征在于：所述锁槽开设在所述推杆块竖直段的上端面，所述锁槽贯穿所述推杆块竖直段的两侧面并向下延伸，所述座位块水平段的后端部设有沿上下方向延伸的腰型槽，所述锁销可上下移动地垂直穿设在所述腰型槽内，在所述锁销向下移动至极限位置时，所述锁销插入所述锁槽。10. The wheelchair walker according to claim 9 is characterized in that: the locking groove is opened on the upper end surface of the vertical section of the push rod block, the locking groove passes through the two side surfaces of the vertical section of the push rod block and extends downward, the rear end portion of the horizontal section of the seat block is provided with a waist-shaped groove extending in the up and down directions, the locking pin is vertically inserted into the waist-shaped groove so as to be movable up and down, and when the locking pin moves downward to the extreme position, the locking pin is inserted into the locking groove. 11.根据权利要求10所述的轮椅助行器，其特征在于：所述车架锁定机构还包括用于驱动所述锁销上下移动的驱动单元，所述驱动单元包括可前后移动地设置在所述座位横梁与所述加强杆之间的解锁块，以及设置在所述解锁块的后端部、用于穿设所述锁销的解锁槽，所述解锁槽自后下方向前上方倾斜延伸，在所述解锁块向前移动至极限位置时，所述解锁槽的槽底与所述腰型槽的槽底及所述锁槽的槽底相对齐，在所述解锁块向后移动至极限位置时，所述解锁槽的槽顶与所述腰型槽的槽顶相对齐并位于所述锁槽的上方。11. The wheelchair walker according to claim 10 is characterized in that: the frame locking mechanism also includes a driving unit for driving the locking pin to move up and down, the driving unit includes an unlocking block movably arranged between the seat cross beam and the reinforcing rod, and an unlocking groove arranged at the rear end of the unlocking block for passing the locking pin, the unlocking groove extending obliquely from the rear lower part to the front upper part, when the unlocking block moves forward to the extreme position, the bottom of the unlocking groove is aligned with the bottom of the waist-shaped groove and the bottom of the locking groove, and when the unlocking block moves backward to the extreme position, the top of the unlocking groove is aligned with the top of the waist-shaped groove and is located above the locking groove. 12.根据权利要求11所述的轮椅助行器，其特征在于：所述解锁块上还设有用于穿设所述第一转动轴的水平槽，所述水平槽位于所述解锁槽的前方，所述水平槽的槽长与所述解锁块前后移动的距离相等。12. The wheelchair walker according to claim 11 is characterized in that: the unlocking block is further provided with a horizontal groove for passing the first rotating shaft, the horizontal groove is located in front of the unlocking groove, and the groove length of the horizontal groove is equal to the distance the unlocking block moves forward and backward. 13.根据权利要求12所述的轮椅助行器，其特征在于：所述解锁块的前端部连接有向前延伸的导杆部，所述导杆部的前端贯穿所述座位横梁形成向外凸出的解锁按钮，所述导杆部的后端部开设有沿前后方向延伸的卡槽，所述卡槽与所述水平槽相贯通，所述卡槽内设有第二弹性件，所述第二弹性件的前后端部分别抵紧所述卡槽的前侧壁与所述第一转动轴的外圆周面，所述第二弹性件具有驱使所述解锁块向前移动至极限位置的趋势。13. The wheelchair walker according to claim 12 is characterized in that: the front end portion of the unlocking block is connected to a guide rod portion extending forward, the front end of the guide rod portion passes through the seat cross beam to form an unlocking button protruding outward, and the rear end portion of the guide rod portion is provided with a card slot extending along the front-to-back direction, the card slot is connected to the horizontal slot, and a second elastic member is provided in the card slot, and the front and rear ends of the second elastic member are respectively pressed against the front side wall of the card slot and the outer circumferential surface of the first rotating shaft, and the second elastic member has a tendency to drive the unlocking block to move forward to the extreme position. 14.根据权利要求13所述的轮椅助行器，其特征在于：所述推杆块位于所述锁槽两侧的部分设有向斜下方延伸的导向斜面，在所述轮椅助行器从折叠状态变换至展开状态时，能够通过所述导向斜面将所述锁销导入所述锁槽。14. The wheelchair walker according to claim 13 is characterized in that the parts of the push rod block located on both sides of the lock slot are provided with guide slopes extending obliquely downward, and when the wheelchair walker is changed from a folded state to an unfolded state, the lock pin can be guided into the lock slot through the guide slopes. 15.根据权利要求13所述的轮椅助行器，其特征在于：所述座位块、所述推杆块、所述前支块均有两块并沿前后方向间隔设置，所述座位块位于所述推杆块及所述前支块的外侧，所述连接块位于所述推杆块及所述前支块的内侧。15. The wheelchair walker according to claim 13 is characterized in that: the seat block, the push rod block, and the front support block each have two blocks and are arranged at intervals in the front-to-back direction, the seat block is located on the outside of the push rod block and the front support block, and the connecting block is located on the inside of the push rod block and the front support block. 16.根据权利要求15所述的轮椅助行器，其特征在于：所述腰型槽贯穿所述座位块水平段的两侧面，所述解锁槽、所述水平槽贯穿所述解锁块的两侧面，所述锁销贯穿所述解锁块及两侧的所述座位块水平段，所述第一转动轴贯穿所述解锁块，所述第一转动轴的两端部与两侧的所述座位块水平段相连接。16. The wheelchair walker according to claim 15 is characterized in that: the waist-shaped groove passes through the two side surfaces of the horizontal section of the seat block, the unlocking groove and the horizontal groove pass through the two side surfaces of the unlocking block, the locking pin passes through the unlocking block and the horizontal sections of the seat block on both sides, the first rotating shaft passes through the unlocking block, and the two ends of the first rotating shaft are connected to the horizontal sections of the seat block on both sides. 17.根据权利要求1至16中任意一项所述的轮椅助行器，其特征在于：所述轮椅助行器还包括脚踏组件，所述脚踏组件包括转动连接在所述前支架内侧的脚踏支架，以及设置在所述脚踏支架上的脚踏板，所述脚踏组件具有收叠工作位置和展开工作位置，在所述脚踏组件处于收叠工作位置时，所述脚踏组件与所述前支架及所述前支横梁位于同一平面，在所述脚踏组件处于展开工作位置时，所述脚踏组件平直展开并位于所述前轮组件的前上方。17. The wheelchair walker according to any one of claims 1 to 16 is characterized in that: the wheelchair walker also includes a footrest assembly, the footrest assembly includes a footrest bracket rotatably connected to the inner side of the front bracket, and a foot pedal arranged on the footrest bracket, the footrest assembly has a folded working position and an unfolded working position, when the footrest assembly is in the folded working position, the footrest assembly is located in the same plane as the front bracket and the front supporting cross beam, and when the footrest assembly is in the unfolded working position, the footrest assembly is unfolded flatly and located in front and above the front wheel assembly.
CN202310507170.8A 2023-05-08 2023-05-08 A wheelchair walker Active CN116459134B (en)

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