CN109568040B - Foldable wheelchair - Google Patents
Foldable wheelchair Download PDFInfo
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- CN109568040B CN109568040B CN201811588332.0A CN201811588332A CN109568040B CN 109568040 B CN109568040 B CN 109568040B CN 201811588332 A CN201811588332 A CN 201811588332A CN 109568040 B CN109568040 B CN 109568040B
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- Prior art keywords
- wheelchair
- support member
- support
- mounting
- connecting part
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
- A61G5/085—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding up and down, e.g. reducing or expanding the overall height of the wheelchair
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0866—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable folding down backrest, e.g. where the backrest folds down onto the seat support
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1002—Parts, details or accessories with toilet facilities
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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)
- Handcart (AREA)
Abstract
本发明适用于医疗器械技术领域，提供了一种可折叠轮椅车，包括车体，以及设于车体底部的两前轮及两后轮，车体包括：两安装架，均设于同一侧的前轮及后轮之间，各安装架的两端分别与前轮及后轮转动连接，安装架内设有控制件，两前轮之间连接有电机，控制件电连接于电机；两支撑组件，分别设于两安装架上，各支撑组件与各安装架之间转动连接且支撑组件可转动并折叠于各安装架上；坐垫，可折叠连接于两支撑组件之间，两安装架、两支撑组件以及坐垫围合形成可容置坐便器的立体空间。通过设置安装架、支撑组件以及坐垫可围合形成立体空间，折叠支撑组件及坐垫即可完成轮椅车的折叠，并以前轮及后轮为承重点，避免折叠电机时使得轮椅车遭到损坏。
The present invention is applicable to the technical field of medical equipment, and provides a foldable wheelchair, including a body, and two front wheels and two rear wheels arranged at the bottom of the body, the body including: two mounting frames, both arranged between the front wheel and the rear wheel on the same side, the two ends of each mounting frame are respectively connected to the front wheel and the rear wheel for rotation, a control component is arranged in the mounting frame, a motor is connected between the two front wheels, and the control component is electrically connected to the motor; two support assemblies are respectively arranged on the two mounting frames, each support assembly is connected to each mounting frame for rotation, and the support assembly can be rotated and folded on each mounting frame; a cushion is foldably connected between the two support assemblies, and the two mounting frames, the two support assemblies and the cushion are enclosed to form a three-dimensional space for accommodating a toilet. By setting the mounting frame, the support assembly and the cushion, a three-dimensional space can be enclosed, and the wheelchair can be folded by folding the support assembly and the cushion, and the front wheel and the rear wheel are used as the bearing points to avoid damage to the wheelchair when the motor is folded.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a foldable wheelchair.
Background
The wheelchair is widely used and developed as a displacement tool for disabled people or old and weak people, and provides convenience for daily travel activities of users. The existing wheelchairs are various in types, structurally divided into a folding type wheelchairs and a fixed type wheelchairs, and driven by manual and electric wheelchairs.
However, the wheelchair frame of the fixed wheelchair is fixed and not foldable, and part of the product frame can be matched with the toilet, but the frame is fixed, so that the size is large, the wheelchair is inconvenient to transport or carry, and the non-foldable wheelchair is mostly used in a manual wheelchair pushing mode.
The existing folding wheelchair has the following two folding modes:
1. The left and right frames are connected in a cross manner through a pair of cross frames, so that left and right folding is realized. However, the cross frame is arranged below the seat of the wheelchair with the structure in the middle part, so that the wheelchair is not provided with enough space to be directly applicable to a toilet; meanwhile, when the folded wheelchair is carried, the folded wheelchair needs to be laterally placed when the space height is insufficient, and the electric wheelchair is easy to influence key parts due to the weight of the folded wheelchair.
2. At present, a part of electric wheelchair is folded back and forth through a connecting rod structure, but a plurality of connecting rods are also arranged below a seat, so that the wheelchair cannot be suitable for a toilet.
Disclosure of Invention
The invention aims to provide a foldable wheelchair, which aims to solve the problem that an electric wheelchair with a folding function in the prior art cannot be suitable for a toilet and key parts are influenced in the folding process.
In order to solve the above problems, an embodiment of the present invention provides a foldable wheelchair, including a vehicle body, and two front wheels and two rear wheels disposed at the bottom of the vehicle body, the vehicle body includes:
The two mounting frames are arranged between the front wheel and the rear wheel on the same side, two ends of each mounting frame are respectively connected with the front wheel and the rear wheel in a rotating way, a control piece is arranged in each mounting frame, a motor is connected between the two front wheels, and the control piece is electrically connected with the motor;
The two support assemblies are respectively arranged on the two mounting frames, each support assembly is rotationally connected with each mounting frame, and the support assemblies can rotate and fold on each mounting frame;
The seat cushion can be connected between the two supporting components in a folding way, and the two mounting frames, the two supporting components and the seat cushion enclose to form a three-dimensional space capable of accommodating the toilet.
Further, each supporting component comprises a front supporting piece and a rear supporting piece, a front mounting rod is arranged between the two front supporting pieces, a rear mounting rod is arranged between the two rear supporting pieces, the front mounting rods are arranged in parallel to the rear mounting rods, the front mounting rods are rotatably and detachably connected to the front end of the bottom of the cushion, and the rear mounting rods are detachably fixed to the rear end of the bottom of the cushion.
Further, the support assembly further comprises a connecting piece arranged between the front support piece and the rear support piece, and two ends of the connecting piece are respectively connected with the front support piece and the rear support piece in a rotating mode and form a quadrilateral with the front support piece, the rear support piece and the cushion.
Further, the inside spout that is equipped with of mounting bracket to and the preceding connecting portion and the back connecting portion that correspond the setting, the spout by back connecting portion to preceding connecting portion extend, preceding support piece rotate connect in preceding connecting portion, back support piece rotate connect and slide locate in the spout.
Further, the rear connecting portion is lower than the front connecting portion, the rear connecting portion is a low-position end, one end of the sliding groove is the rear connecting portion, and the other end of the sliding groove is a high-position end which is opposite to the rear connecting portion.
Further, a sliding shaft which can extend into the sliding groove is fixed at the lower end of the rear supporting piece, the sliding shaft is arranged in the sliding groove in a sliding way through a bearing, an opening for installing the sliding shaft into the sliding groove is formed in the high-position end, and a limiting sealing plate for preventing the sliding shaft from being separated from the sliding groove is arranged on the opening.
Further, the foldable wheelchair further comprises a backrest;
The support assembly further comprises a backrest support for fixing the backrest, and the backrest support is rotatably connected to the upper end of the rear support;
the upper end of the front support piece is provided with a spring pin in an extending mode, the back support piece is connected with the front support piece through the spring pin, and the back support piece, the front support piece and the seat cushion form a triangle.
Further, the support assembly further includes a handle having one end rotatably coupled to the spring pin.
Further, the foldable wheelchair further comprises a shell, a battery and a motor, wherein the shell is positioned between the two front wheels and connected with the mounting frame, the battery is arranged on the inner side of the shell, the motor is installed in the shell, and the battery is electrically connected with the motor.
Further, the foldable wheelchair further comprises a small roller which is arranged on the shell and has a smaller volume than the front wheels, so as to prevent the wheelchair from tilting.
The foldable wheelchair provided by the invention has the beneficial effects that: compared with the prior art, the motor is arranged between the two front wheels, the mounting frames are arranged between the front wheels and the rear wheels which are positioned on the same side, the two supporting components are respectively and rotatably connected to the mounting frames and can rotate and fold on the mounting frames, meanwhile, the cushion is connected between the supporting components in a folding way, and the mounting frames, the supporting components and the cushion can be enclosed to form a three-dimensional space, so that the wheelchair can be suitable for a toilet, and folding of the wheelchair can be completed only by folding the supporting components and the cushion, and the folded wheelchair takes the front wheels and the rear wheels as bearing points, so that the wheelchair is prevented from being damaged when the heavier motor is folded.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a foldable wheelchair according to an embodiment of the present invention adapted to a toilet;
FIG. 2 is a left side view of a foldable wheelchair according to an embodiment of the present invention;
FIG. 3 is a left side view of a half fold of a foldable wheelchair according to an embodiment of the present invention;
FIG. 4 is a left side view of a foldable wheelchair according to an embodiment of the present invention;
FIG. 5 is a front view of a foldable wheelchair according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
fig. 7 is a partial enlarged view at B of fig. 6.
Wherein, each reference sign in the figure:
100-car body; 200-front wheels; 300-rear wheel; 400-control; 500-motors; 600-backrest; 700 shells; 800-battery; 900-small roller; 11-mounting rack; 12-a support assembly; 13-a cushion; 14-front mounting bar; 15-rear mounting bar; 16-sliding shaft; 111-a chute; 112-front connection; 113-rear connection/ground end; 114-high end; 115-limiting sealing plates; 121-front support; 122-rear support; 123-connecting piece; 124-back support; 125-spring pins; 126-armrests.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 5, a foldable wheelchair according to an embodiment of the invention includes a vehicle body 100, two front wheels 200 and two rear wheels 300.
Specifically, two front wheels 200 and two rear wheels 300 are provided at the bottom of the vehicle body 100; the vehicle body 100 includes two mounting brackets 11, two support members 12 and a seat cushion 13. Specifically, two mounting frames 11 are respectively arranged between a front wheel 200 and a rear wheel 300 on the same side, two ends of each mounting frame 11 are respectively connected with the front wheel 200 and the rear wheel 300 in a rotating way, a control piece 400 is arranged in each mounting frame 11, a motor 500 is connected between the two front wheels 200, and the control piece 400 is electrically connected with the motor 500; the two support assemblies 12 are respectively arranged on the two mounting frames 11, each support assembly 12 is rotatably connected with each mounting frame 11, and the support assemblies 12 can be rotated and folded on each mounting frame 11; the cushion 13 is connected between the two supporting components 12 in a foldable manner, and the two mounting frames 11, the two supporting components 12 and the cushion 13 enclose to form a three-dimensional space capable of accommodating the toilet.
In the embodiment of the invention, the motor 500 is arranged between the two front wheels 200, the mounting frames 11 are arranged between the front wheels 200 and the rear wheels 300 which are positioned on the same side, the two supporting components 12 are respectively rotatably connected to the mounting frames 11 and can rotate and fold on the mounting frames 11, meanwhile, the cushion 11 is connected between the supporting components 12 in a folding way, the mounting frames 11, the supporting components 12 and the cushion 13 can be enclosed to form a three-dimensional space, so that the wheelchair can be suitable for a toilet, and the folding of the wheelchair can be completed only by folding the supporting components 12 and the cushion 13, and the folded wheelchair is also protected from being damaged when the motor 500 with the front wheels 200 and the rear wheels 300 is folded.
Specifically, referring to fig. 1, as one embodiment of the present invention, two ends of the mounting frame 11 are respectively disposed between the front wheel 200 and the rear wheel 300, and the front wheel 200 and the rear wheel 300 are respectively disposed on the mounting frame 11 and rotate on the mounting frame 11. Specifically, the two front wheels 200 respectively include a left front wheel and a right front wheel, and the two rear wheels 300 include a left rear wheel and a right rear wheel; the two mounting frames 11 are respectively a left mounting frame and a right mounting frame, the left mounting frame is arranged between the left front wheel and the left rear wheel, and the right mounting frame is arranged between the right front wheel and the right rear wheel, so that the two mounting frames 11 are symmetrically arranged on the left side and the right side of the wheelchair; the mounting frame 11 is a non-foldable part, and a receiving space is provided inside the mounting frame, and the control member 400 is mounted inside the receiving space. The motor 500 is disposed between the two front wheels 200, mainly in the front of the wheelchair, and the motor 500 is a large-sized and heavy member, and is also a non-foldable part integrally formed with the two front wheels. Thus, the two front wheels 200, the motor 500, and the left and right mounts on the left and right sides form a horizontally open "U" shaped structure. Meanwhile, the folded wheelchair does not change the original overall shape formed between the two front wheels 200, the two rear wheels 300, the motor 500 and the mounting frame 11, namely, the key components such as the control member 400 and the motor 500 are not required to be folded, so that the wheelchair is very convenient, and the situation that the key parts are easily influenced due to the weight of the motor 500 and the like is avoided.
Specifically, the inside accommodation space that is equipped with of mounting bracket 11 here, inboard is disjunctor formula baffle structure, has waterproof function, can prevent the unable condition of working of control 400 that the humidity leads to. The components that may be mounted in the receiving space of the mounting frame 11 include the control member 500 and other components that are important or are susceptible to damage disposed on the surface of the support assembly 12. Meanwhile, parts having a large volume and a large weight, such as the motor 500, may be disposed between the front wheels 200 or between the front wheels 200 and the rear wheels 300 because of inconvenience in folding, preventing damage to themselves and damage to the vehicle body 100 during folding of such parts.
Referring to fig. 1, 3 and 4, as one embodiment of the present invention, the supporting component 12 is a foldable main component, and forms a foldable link mechanism. The two groups of support assemblies 12 are symmetrically and rotatably connected to the left mounting frame 11 and the right mounting frame 11, and comprise the left support assembly 12 and the right support assembly 12, which can be rotated and folded on the mounting frame 11, and the left support assembly 12 and the right support assembly 12 and the seat cushion 13 integrally form a vertical U-shaped structure with a downward opening. That is, the mounting frame 11, the supporting members 12 and the seat cushion of the wheelchair respectively form an open-type "U" shaped space which is horizontally arranged and vertically arranged, that is, the two mounting frames 11, the two groups of supporting members 12 and the seat cushion 13 enclose an open three-dimensional space which is opened towards the rear, the three-dimensional space can be adapted to the use of the toilet bowl, and the foldable wheelchair can be used above the toilet bowl. And, the support assembly 12 can be rotatably and foldably installed on the mounting frame 11, and the support assembly 12 can be folded to be close to the mounting frame 11 and the front wheel 200 and the rear wheel 300 in the folding process, so that the wheelchair is folded. In summary, the folding of the wheelchair can be completed only by folding the supporting component 12 and the cushion 13, and the folded wheelchair is still placed by taking the front wheels 200 and the rear wheels 300 as bearing points, so that the wheelchair is prevented from being damaged due to the fact that the motor 500, the control member 400 and other parts with larger volumes or weight are used.
Further, referring to fig. 4 and 5 together, as an embodiment of the present invention, each support assembly 12 includes a front support 121 and a rear support 122, a front mounting rod 14 is disposed between the left and right front supports 121 of the body 100 of the wheelchair, a rear mounting rod 15 is disposed between the left and right rear supports 122, the front mounting rod 14 is disposed parallel to the rear mounting rod 15, the front mounting rod 14 is disposed at the front end of the bottom of the seat cushion 13, the seat cushion 13 rotates around the front mounting rod 14, and when the wheelchair is folded, the seat cushion 13 rotates around the front mounting rod 14 and is turned over to the front of the wheelchair, so that the wheelchair is convenient to fold. The front mounting rod 14 is also detachable from the front end of the bottom of the seat cushion 13, so that the seat cushion can be completely detached for cleaning, and the rear mounting rod 15 is detachably fixed to the rear end of the bottom of the seat cushion 13.
Specifically, referring to fig. 5, the front mounting rods 14 may be two corresponding front mounting rods 14 respectively disposed on two front supporting members 121, each front mounting rod 14 is connected to two sides of a front end of a bottom of the seat cushion 13, the two front mounting rods 14 are not contacted, two semi-open brackets are disposed at the front end of the bottom of the seat cushion 13, the front mounting rods 14 may pass through the brackets, and a stop collar is disposed at one end passing through the brackets for limiting the front mounting rods 14 from separating from the brackets and being detached from the bottom of the seat cushion 13 when the wheelchair shakes left and right.
Alternatively, the front mounting bar 14 may be provided as one front mounting bar 14 connected to two front support members 121, and the front end of the bottom portion of the seat cushion 13 may be rotated about the front mounting bar 14 to effect folding of the seat cushion 13 and folding of the auxiliary support assembly 14.
Specifically, referring to fig. 5, the rear mounting bars 15 are provided as one rear mounting bar 15 connected to two rear supporting members 122, and are detachable from the bottom of the seat cushion 13.
Specifically, referring to fig. 6, the seat cushion 13 includes a seat cushion supporting plate and a soft layer disposed on the seat cushion supporting plate, and a user directly contacts the soft layer to improve comfort and replace the seat cushion according to different needs. The cushion layer board is the metal material spare or is the higher material spare of hardness, and mainly used bearing, the cushion layer board is the quadrangle, is the structure that four sides are fully enclosed, can fix soft layer and make soft layer unable to remove even break away from the cushion layer board to the four sides.
Further, referring to fig. 2 to 4 together, as an embodiment of the present invention, the support assembly 12 further includes a connecting member 123 disposed between the front support member 121 and the rear support member 122, wherein two ends of the connecting member 123 are respectively connected to the non-end positions of the front support member 121 and the rear support member 122, and can rotate around the front support member 121 and the rear support member 122, and when the wheelchair is folded, the connecting member 123 rotates at the same time on the front support member 121 and the rear support member 122 and inclines downward and backward, and pulls the front support member 122 to rotate downward and backward of the wheelchair to the lowest point, so that the wheelchair can be folded more easily.
Specifically, the connecting member 123 forms a quadrilateral with the front supporting member 121, the rear supporting member 122 and the cushion 13, when the wheelchair is in use, a relatively suitable position distribution is formed between the front supporting member 121 and the rear supporting member 122, and the connecting member 123 is arranged between the front supporting member 121 and the rear supporting member 122, so that the whole wheelchair body 100 is more stable, at this time, the front supporting member 121 and the rear supporting member 122 are not only fixed by the cushion 13, but also by the rear mounting rod 15 connected between the front supporting member 121 and the rear supporting member 122, and the wheelchair body 100 is more firm and the service life of the cushion 13 is longer.
Further, referring to fig. 6 and 7 together, as a specific embodiment of the present invention, a chute 111, a front connecting portion 112 and a rear connecting portion 113 are disposed on the inner side of the mounting frame 11, and a front supporting member 121 is rotatably connected to the front connecting portion 112, and when the wheelchair is folded, the front supporting member 121 is rotated backward to the lowest point to be reached to complete the folding; the rear supporting member 122 is rotatably connected to the chute 111, and is also rotatable backward to the lowest point, and at the same time, the rear supporting member 122 is also slidable in the chute, and the chute 111 starts from the rear connecting portion 113, extends along the connecting line between the rear connecting portion 113 and the front connecting portion 112 toward the front connecting portion 113, but does not contact the front connecting portion 113. When the wheelchair is folded, the rear support 122 slides and rotates simultaneously in the chute 111, so that one end of the rear support 122 slides forward of the wheelchair and rotates in the chute 111, thereby rotating the other end rearward to the lowest point. At this time, since one end of the rear support 122 can also slide forward of the wheelchair when rotating, the volume of the folded wheelchair can be reduced accordingly, shortening the length of the wheelchair.
Specifically, referring to fig. 6, when the wheelchair is in use, the rear support 122 is fixed to the rear connection portion 113, the front support 121 is fixed to the front connection portion 112, and the space between the front support 121 and the rear support 122 is smaller in top and larger in bottom, so that the wheelchair is more stable.
Further, referring to fig. 7, as an embodiment of the present invention, the rear connecting portion 113 is lower than the front connecting portion 112, and the rear supporting member 122 is rotatably connected to the rear connecting portion 112, so that the wheelchair can be folded, and the folded wheelchair can be optimally small in size. The rear connecting part 113 is a low-level end 113, one end of the sliding chute 111 is a rear connecting part 113, the other end is a high-level end 114 which is opposite to the rear connecting part 113, namely, the two ends of the sliding chute 111 are provided with the high-level end 114 and the low-level end 113, when the wheelchair is in use, the rear supporting piece 122 is fixed at the low-level end 113, so that the end point of the front supporting piece 121 is higher than the end point of the rear supporting piece 122, and the wheelchair is firmer; when the wheelchair is folded, the rear support 122 slides from the lower end 113 to the upper end 114 of the chute 111, and the rear support 122 can rotate backward to the lowest point but does not rub against the ground to be damaged, and the stability of the wheelchair in use can be further improved.
Further, referring to fig. 7, as an embodiment of the present invention, a sliding shaft 16 that can extend into the sliding groove 111 is fixed at the lower end of the rear support 122, and the sliding shaft 16 is slidably disposed in the sliding groove 111 through a bearing and can slide in the inner side of the sliding groove 111. The rear support 122 is secured to the lower end 113 by the sliding axle 16 and bearings when the wheelchair is in use, and the rear support 122 is secured to the upper end 114 when the wheelchair is fully folded.
Alternatively, as another embodiment of the present invention, the lower end of the rear support 122 is fixed with a sliding shaft 16 that can extend into the sliding groove 111, the outer surface of the sliding shaft 16 is circumferentially distributed with protruding members, the inner side wall of the sliding groove 111 is provided with a groove, and the protruding members are arranged in the groove and can slide in the groove, so that the rear support 122 can slide in the sliding groove 111, and folding is facilitated.
Specifically, the high end 114 is provided with an opening for loading the sliding shaft 16 into the chute 111, and a limit seal plate 115 for preventing the sliding shaft 16 from being separated from the chute 111 is mounted on the opening. When the wheelchair is in use, the rear support 122 is fixed at the low end 113, so that the limit seal plate 115 is not damaged by force, and when the wheelchair is folded, the rear support 122 is fixed at the high end 114, i.e. at the opening, and the limit seal plate 115 can be arranged according to the specific shape of the opening and is matched with the opening. The limit seal plate 115 is used to seal the opening and limit the lower end of the rear support 122 from sliding infinitely and out of the chute 111. It should be noted that, when the rear support 122 needs to be disassembled, the limit seal plate 115 may be directly disassembled so as to disassemble the rear support 122.
Further, referring to fig. 1, as one of the embodiments of the present invention, the foldable wheelchair further includes a backrest 600; the support assembly 12 further includes backrest supports 124 for fixing the backrest 600, the backrest supports 124 are rotatably connected to the upper ends of the rear supports 122, the number of the backrest supports 124 is two, each of the backrest supports 124 is connected to one end of the rear support 122 and extends upward, and the backrest 600 is fixed to the front side of the backrest supports 124;
Specifically, the upper end of the front support 121 is extended with a spring pin 125, and the spring pin 125 cannot rotate to the front support 121 even during folding for a fixed connection. However, it is not limited thereto, and in practice, whether the spring pin 125 needs to be rotated to the front support 121 may be selected as needed, and set accordingly. The back support 124 is connected to the front support 121 by a spring pin 125, and the connection between the spring pin 125 and the back support 124 is a detachable connection; meanwhile, when a user sits on the wheelchair and pulls backward, the backrest support 124 can correspondingly extend backward according to the characteristic of the spring pin 125, so that the wheelchair is properly elastic, and the user is prevented from being damaged directly due to the backward leaning and pressing of the backrest support 124. Correspondingly, a backrest elastic band is connected between the backrest support 124, and is used for buffering and resetting after the backrest support 124 rotates backwards due to the fact that the spring pin 125 stretches when a user leans backwards, so that the use experience of the wheelchair is improved.
Specifically, the backrest support 124, the front support 122 and the seat cushion 113 form a triangle, which improves the stability of the wheelchair in use.
Specifically, a backrest connecting member is further disposed between the backrest supporting members 124, and contacts the backrest and performs a load-bearing function, mainly for supporting the user's back. In the embodiment of the present invention, the number of the backrest connecting members is one, but is not limited thereto, and the optimal number and installation position may be selected according to the weight of the user, etc.
Further, referring to fig. 1, as an embodiment of the present invention, the support assembly 12 further includes a handrail 126, wherein one end of the handrail 126 is connected to the spring pin 125, and the handrail 126 can be further rotated at one end of the spring pin 125. When the wheelchair is folded, the armrest 126 and the spring pin 125 can be simultaneously detached from the backrest support 124, and the armrest 126 rotates on the spring pin 125 to achieve folding.
Further, referring to fig. 1, 5 and 6, the foldable wheelchair further includes a housing 700 disposed between the front wheels 200 and connected to the mounting frame 11, and a battery 800 disposed inside the housing 700, wherein the motor 500 is mounted in the housing 700, and the battery 700 is electrically connected to the motor 500.
Specifically, the front wheel 200 is a driving wheel, the battery 700 is electrically connected to the motor 500, the motor 500 is connected to the front wheel 200 and the control member 400, and the user can control the motor 500 to drive the front wheel 200 through the control member 400, so as to drive the whole wheelchair to run. The battery 800 is used to power the motor 500.
Specifically, a housing 700 is disposed between the two front wheels 200, and two ends of the housing 700 are respectively connected to front ends of the two mounting frames 11, so as to form an integral structure with the mounting frames 11. The wheelchair is folded in the folding process without folding the shell 700, the mounting frame 11, the front wheels 200 and the rear wheels 300, so that the folded wheelchair is folded by folding the front wheels 200 and the rear wheels 300 to serve as bearing points, and the wheelchair is prevented from being damaged when the heavier motor is folded. The wheelchair body 100 is not affected during transportation and storage.
Further, referring to fig. 4, as an embodiment of the present invention, the foldable wheelchair further includes a small roller 900, which is fixed to the housing 700 and in front of the front wheel 200, and the small roller 900 has a smaller volume than the front wheel 200. The small roller 900 can be used in contact with the ground, and when the wheelchair is running, the small roller 900 rotates simultaneously with the front wheel 200 and the rear wheel 300; when a user moves forwards or gets off the wheelchair, the small rollers 900 can avoid the condition that the wheelchair is inclined forwards as a whole, so that the wheelchair is prevented from falling down due to uncontrollable user when the wheelchair is inclined forwards; after the wheelchair is completely folded, the user can lift the wheelchair and move the wheelchair to a predetermined position by using the small rollers 900 as the towing wheels.
In particular, referring to fig. 1, as a specific embodiment of the present invention, a foot rest for a user to place feet is further provided at the front of the housing 700, thereby improving the comfort of the wheelchair.
The specific working mode of the foldable wheelchair provided by the invention is as follows: when the wheelchair is needed, the front support 121 is fixed at the front connecting part 112 of the mounting frame 11, the rear support 122 is fixed at the low end 113 of the chute 111, the distance between the front support 121 and the rear support 122 is small, the distance between the back support 124 and the front support 122 and the cushion 113 are large, a triangle is formed, and the connecting part 123 forms a quadrilateral with the front support 121, the rear support 122 and the cushion 13, so that the wheelchair is more stable. At the same time, the two mounting brackets 11, the two sets of support members 12 and the seat cushion 13 enclose an open, rear-facing, three-dimensional space which can be adapted to the use of the toilet bowl.
When the wheelchair is required to be folded, the rear end of the cushion 13 is detached from the rear mounting rod 15, the front end of the cushion 13 rotates around the front mounting rod 15, the front support 121 of the backrest support 124 is detached from the armrest 126 and the spring pin 125 simultaneously to drive the spring pin 125, the armrest 126 and the cushion 13 to rotate backward, the rear support 122 slides in the chute 111 to the high end 114 to drive the backrest support 124 to rotate backward simultaneously, when the backrest 600 is vertically placed at the lowest point, and the rear end of the cushion 13 is detached from the rear mounting rod 15 and contacts with the highest point of the backrest 600, so that the wheelchair is folded. At this time, the front wheel 200 and the rear wheel 300 are used as bearing points, and the small roller is used as a towing wheel for towing, so that the situation that the weight of the motor 500 and the like is easy to influence key parts is avoided. And only need folding supporting component 12 and cushion 13 can accomplish, ten sides are convenient simple.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588332.0A CN109568040B (en) | 2018-12-25 | 2018-12-25 | Foldable wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588332.0A CN109568040B (en) | 2018-12-25 | 2018-12-25 | Foldable wheelchair |
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| Publication Number | Publication Date |
|---|---|
| CN109568040A CN109568040A (en) | 2019-04-05 |
| CN109568040B true CN109568040B (en) | 2024-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811588332.0A Active CN109568040B (en) | 2018-12-25 | 2018-12-25 | Foldable wheelchair |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110236809A (en) * | 2019-05-29 | 2019-09-17 | 江苏君悦智能轮椅科技有限公司 | A kind of high-performance Collapsible wheelchair vehicle |
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| CN109568040A (en) | 2019-04-05 |
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Denomination of invention: Foldable wheelchair Granted publication date: 20240625 Pledgee: Industrial and Commercial Bank of China Fengcheng Branch Pledgor: JIEHE MOTOR (JIANGXI) CO.,LTD. Registration number: Y2025980051470 |