CN215739997U - Big wheel backward moving structure of wheelchair - Google Patents
Big wheel backward moving structure of wheelchair Download PDFInfo
- Publication number
- CN215739997U CN215739997U CN202122393769.2U CN202122393769U CN215739997U CN 215739997 U CN215739997 U CN 215739997U CN 202122393769 U CN202122393769 U CN 202122393769U CN 215739997 U CN215739997 U CN 215739997U
- Authority
- CN
- China
- Prior art keywords
- wheelchair
- rod
- inverted
- guide rail
- shaped rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Handcart (AREA)
Abstract
The utility model relates to the technical field of wheelchairs, in particular to a large wheel backward moving structure of a wheelchair, which comprises a linear guide rail arranged at the lower part of a handrail rod at the rear end of a wheelchair frame; the linear guide rail is connected with the bottom end of the lower rod body of the inverted L-shaped rotating rod; the inverted L-shaped rotating rod is hinged with the supporting plate; the support plate is arranged in the middle of the grab rail; an oval adjusting hole is formed in the rear end of the horizontal rod body of the inverted L-shaped rotating rod; the top end of the transmission rod is hinged with the bottom end of the armrest of the wheelchair; a longitudinal convex rod is arranged on the inner wall of the bottom end of the transmission rod, the longitudinal convex rod penetrates through an elliptical adjusting hole of the inverted L-shaped rotating rod and a vertical sliding groove in the supporting plate, a raised head is arranged at the outer side end of the longitudinal convex rod, and the raised head and the longitudinal convex rod form a sliding fulcrum; the wheelchair with the two rear wheels can be conveniently and quickly moved backwards or restored to the original position, so that the wheelchair can be taken out of the wheelchair from the side, and the wheelchair is greatly convenient for people with physical disabilities to use.
Description
Technical Field
The utility model relates to the technical field of wheelchairs, in particular to a large wheel backward moving structure of a wheelchair.
Background
Physically disabled, handicapped or rehabilitated people often use wheelchairs. Wheelchairs are widely used as travel tools for the above-mentioned people. In a traditional wheelchair, two rear wheels are mounted on two sides of the rear end of a wheelchair frame, and pedals and guide wheels are mounted on two sides of the front end of the wheelchair frame respectively. However, when the people get off the wheelchair, the rear wheel is fixed on the frame, so the front end of the wheelchair needs to get off, which is very inconvenient. In addition, when the above-mentioned people use the wheelchair, the wheelchair still needs to be moved to the side of the bed from the front end of the wheelchair, and the above-mentioned people often have trouble and trouble due to inconvenience of legs and feet. Therefore, how to get off from the side of the wheelchair is realized, so that people can get off conveniently and can move the bed conveniently, and the people can conveniently live and work.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a large wheel backward moving structure of a wheelchair, aiming at the defects and shortcomings of the prior art.
The utility model relates to a large wheel backward moving structure of a wheelchair, which comprises a linear guide rail arranged at the lower part of a handrail rod at the rear end of a wheelchair frame; the linear guide rail is connected with the bottom end of the lower rod body of the inverted L-shaped rotating rod;
the inverted L-shaped rotating rod is hinged with the supporting plate; the support plate is arranged in the middle of the grab rail; an oval adjusting hole is formed in the rear end of the horizontal rod body of the inverted L-shaped rotating rod; the top end of the transmission rod is hinged with the bottom end of the armrest of the wheelchair; the inner wall of the bottom end of the transmission rod is provided with a longitudinal convex rod, the longitudinal convex rod penetrates through an elliptical adjusting hole of the inverted L-shaped rotating rod and a vertical sliding groove in the supporting plate, a raised head is arranged at the outer side end of the longitudinal convex rod, and the raised head and the longitudinal convex rod form a sliding fulcrum.
Furthermore, the linear guide rail comprises a sliding block, the sliding block is arranged in the horizontal direction, the sliding block is arranged on the lower portion of the grab rail of the wheelchair frame, a guide rail matched with the sliding block is arranged in a horizontal sliding groove in the sliding block, and the sliding block and the guide rail form the linear guide rail.
Furthermore, the front end of the guide rail is provided with a limiting block.
Further, the shape of falling L dwang comprises the horizontal body of rod and the lower body of rod that leans out.
Furthermore, the support plate comprises a tripod, an inverted U-shaped plate is arranged on the right side of the tripod and is connected with the middle part of the grab bar at the rear end of the wheelchair frame; the inverted U-shaped plate is provided with a vertical sliding groove.
Furthermore, the middle part of the lower rod body of the handrail is hinged in a U-shaped frame, and the U-shaped frame is arranged on the upper part of the handrail rod of the wheelchair frame.
After adopting the structure, the utility model has the beneficial effects that: the utility model relates to a large wheel backward moving structure of a wheelchair, which is characterized in that a transmission rod is hinged at the bottom end of a handrail of the wheelchair, the transmission rod is hinged with a rotating rod, the rotating rod is hinged with a support plate, and the support plate is arranged in the middle of the handrail; the bottom end of the rotating rod is connected with the linear guide rail; when the handrail is opened, the transmission rod is driven to act, the transmission rod drives the rotating rod to act, and the rotating rod drives the linear guide rail to horizontally move left and right, so that the large wheel is driven to move backwards; the wheelchair with the two rear wheels can be conveniently and quickly moved backwards or restored to the original position, so that the wheelchair can be taken out of the wheelchair from the side, and the wheelchair is greatly convenient for people with physical disabilities to use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, and are not to be considered limiting of the utility model, in which:
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a perspective view of the present invention with a rear wheel mounted;
FIG. 3 is a schematic perspective view of the present invention mounted on a wheelchair;
fig. 4 is a side view of the wheelchair with the armrests open and the rear wheels rearward.
Description of reference numerals:
an armrest-1; a grab rail-2; a U-shaped frame-3; a transmission rod-4; a sliding fulcrum-41; a support plate-5; a tripod-51; an inverted U-shaped plate-52; a vertical chute-53; an inverted L-shaped rotating rod-6; a horizontal rod body-61; a lower rod body-62; -63, elliptical adjustment holes; a linear guide rail-7; rail-71; a limiting block-711; a slide-72; a mounting plate-8; a rear wheel-9; a wheelchair frame-10.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the large wheel backward moving structure of the wheelchair according to the present embodiment includes a linear guide 7 installed at a lower portion of a grab bar 2 at a rear end of a wheelchair frame 10;
the linear guide rail 7 is connected with the bottom end of the lower rod body 62 of the inverted L-shaped rotating rod 6; in the design, a rear wheel mounting pivot is formed at the intersection of the linear guide rail 7 and the inverted L-shaped rotating rod 6; the rear wheel mounting pivot is provided with a mounting disc 8 for mounting a rear wheel of the wheelchair, and the rear wheel 9 of the wheelchair can be conveniently mounted by using the mounting disc 8;
the inverted L-shaped rotating rod 6 is hinged with the supporting plate 5; the support plate 5 is arranged in the middle of the grab rail 2; an oval adjusting hole 63 is formed in the rear end of the horizontal rod body 61 of the inverted L-shaped rotating rod 6;
the top end of the transmission rod 4 is hinged with the bottom end of the armrest 1 of the wheelchair; the inner wall of the bottom end of the transmission rod 4 is provided with a longitudinal convex rod, the longitudinal convex rod penetrates through the oval adjusting hole 63 of the inverted L-shaped rotating rod and the vertical sliding groove 53 on the supporting plate 5, the outer side end of the longitudinal convex rod is provided with a raised head, and the raised head and the longitudinal convex rod form a sliding fulcrum 41.
Further, the linear guide rail 7 comprises a slide block 72, the slide block 72 is arranged in the horizontal direction, the slide block 72 is arranged at the lower part of the grab bar 2 of the wheelchair frame 10, a guide rail 71 matched with the slide block 72 is arranged in a horizontal sliding groove on the slide block 72, and the slide block 72 and the guide rail 71 form the linear guide rail 7. In this design, the guide rail slides back and forth in the horizontal direction.
Further, a limiting block 711 is disposed at the front end of the guide rail 71.
Further, the inverted L-shaped rotating lever 6 is composed of a horizontal lever body 61 and a lower lever body 62 inclined outward.
Further, the support plate 5 comprises a tripod 51, an inverted U-shaped plate 52 is arranged on the right side of the tripod 51, and the inverted U-shaped plate 52 is connected with the middle part of the grab bar 2 at the rear end of the wheelchair frame 10; the inverted U-shaped plate 52 is provided with a vertical sliding groove 53.
Further, the middle part of the lower rod body of the handrail 1 is hinged in a U-shaped frame 3, and the U-shaped frame 3 is arranged at the upper part of the handrail rod 2 of the wheelchair frame 10.
The working principle of the utility model is as follows:
in the design, two grab bars 2 at two sides of the rear end of the wheelchair frame 10 are respectively provided with a backward moving mechanism, and the two backward moving mechanisms respectively correspondingly control two rear wheels 9 at the rear part of the wheelchair.
In the design, a linear guide rail 7 is arranged at the lower part of the grab rail 2, and a support plate 5 is arranged at the middle part of the grab rail 2; the upper part of the grab bar 2 is provided with a U-shaped frame 3.
Wherein: the middle part of the U-shaped frame 3 is provided with a shaft rod which is inserted through the corresponding hole on the rod body at the lower end of the handrail, so that the handrail is hinged on the U-shaped frame 3. The handrail 1 is hinged with the upper end of the transmission rod 4.
Wherein: the support plate 5 comprises a tripod, an inverted U-shaped plate is arranged on the right side of the tripod and connected with the upper portion of a vertical rod at the rear end of the wheelchair frame, and a vertical sliding groove is formed in the inverted U-shaped plate. The support plate is hinged to the turning rod. The shape of falling L dwang comprises the horizontal body of rod and the lower body of rod that leans out, and the rear end of the horizontal body of rod is provided with oval regulation hole. The left end of the tripod of the supporting plate is hinged with the joint of the horizontal rod body and the lower rod body of the inverted L-shaped rotating rod.
The bottom end of the transmission rod 4 is provided with a sliding fulcrum 41. The sliding fulcrum 41 is composed of a raised head and a longitudinal protruding rod, and the raised head is arranged at the outer side end of the longitudinal protruding rod. Specifically, a longitudinal convex rod is arranged on the inner wall of the bottom end of the transmission rod, the longitudinal convex rod penetrates through an oval adjusting hole of the inverted L-shaped rotating rod and a vertical sliding groove in the supporting plate, and a raised head is arranged at the outer side end of the longitudinal convex rod. The sliding fulcrum can move up and down in the vertical sliding groove.
A linear guide rail 7 is arranged at the bottom end of the lower rod body of the inverted L-shaped rotating rod 6; the linear guide rail 7 comprises a sliding block, the sliding block is arranged in the horizontal direction and is arranged on the lower portion of the rear end of the wheelchair frame, a guide rail matched with the sliding block is arranged in a horizontal sliding groove in the sliding block, and the sliding block and the guide rail form a linear guide rail. In this design, the guide rail slides back and forth in the horizontal direction.
When the wheelchair is used, the armrests are firstly pulled upwards, then the rear wheels are dragged to move towards the outer side direction, the rear wheels move to drive the guide rails linked with the rear wheels to horizontally move in sliding, the guide rails synchronously drive the rotating rods to move, the rotating rods drive the transmission rods to synchronously link, and the sliding fulcrums at the bottom ends of the transmission rods move in the vertical sliding grooves of the supporting plates, so that the rear wheels of the wheelchair can move backwards.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides a bull wheel rearward movement structure of wheelchair which characterized in that: comprises a linear guide rail arranged at the lower part of a grab bar at the rear end of a wheelchair frame; the linear guide rail is connected with the bottom end of the lower rod body of the inverted L-shaped rotating rod;
the inverted L-shaped rotating rod is hinged with the supporting plate; the support plate is arranged in the middle of the grab rail; an oval adjusting hole is formed in the rear end of the horizontal rod body of the inverted L-shaped rotating rod; the top end of the transmission rod is hinged with the bottom end of the armrest of the wheelchair; the inner wall of the bottom end of the transmission rod is provided with a longitudinal convex rod, the longitudinal convex rod penetrates through an elliptical adjusting hole of the inverted L-shaped rotating rod and a vertical sliding groove in the supporting plate, a raised head is arranged at the outer side end of the longitudinal convex rod, and the raised head and the longitudinal convex rod form a sliding fulcrum.
2. The large wheel backward movement structure of a wheelchair as claimed in claim 1, wherein: the linear guide rail comprises a sliding block, the sliding block is arranged in the horizontal direction and is arranged on the lower portion of a grab rail of the wheelchair frame, a guide rail matched with the sliding block is arranged in a horizontal sliding groove in the sliding block, and the sliding block and the guide rail form the linear guide rail.
3. The large wheel backward movement structure of a wheelchair as claimed in claim 1, wherein: the front end of the guide rail is provided with a limiting block.
4. The large wheel backward movement structure of a wheelchair as claimed in claim 1, wherein: the shape of falling L dwang comprises the horizontal body of rod and the lower body of rod that leans out.
5. The large wheel backward movement structure of a wheelchair as claimed in claim 1, wherein: the support plate comprises a tripod, an inverted U-shaped plate is arranged on the right side of the tripod and is connected with the middle part of a grab bar at the rear end of the frame of the wheelchair; the inverted U-shaped plate is provided with a vertical sliding groove.
6. The large wheel backward movement structure of a wheelchair as claimed in claim 1, wherein: the middle part of the lower rod body of the handrail is hinged in a U-shaped frame, and the U-shaped frame is arranged on the upper part of the handrail rod of the wheelchair frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122393769.2U CN215739997U (en) | 2021-09-30 | 2021-09-30 | Big wheel backward moving structure of wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122393769.2U CN215739997U (en) | 2021-09-30 | 2021-09-30 | Big wheel backward moving structure of wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215739997U true CN215739997U (en) | 2022-02-08 |
Family
ID=80092472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122393769.2U Active CN215739997U (en) | 2021-09-30 | 2021-09-30 | Big wheel backward moving structure of wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215739997U (en) |
-
2021
- 2021-09-30 CN CN202122393769.2U patent/CN215739997U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6584629B2 (en) | Multifunctional bed | |
| US6126186A (en) | Constant center of gravity tilt seat of a wheelchair | |
| US3262133A (en) | Adjustable bed | |
| US6450581B1 (en) | Power legrest for a wheelchair | |
| CN104473469B (en) | A kind of child's full-automatic myopia tables and chairs | |
| US20090070928A1 (en) | Lifting and lowering adjustment structure of a bed | |
| CN215739997U (en) | Big wheel backward moving structure of wheelchair | |
| JP2013198554A (en) | Reclining type wheelchair | |
| CN112315206A (en) | Wood children desk chair convenient to adjust | |
| GB2124557A (en) | Wheelchairs | |
| CN107594960B (en) | Adjustable chair | |
| CN112603670B (en) | Angle and height adjustable chair surface structure and multifunctional wheelchair thereof | |
| CN211244153U (en) | Multi-functional wheelchair of transform formula of sitting and lying like lavatory based on mecanum wheel omnidirectional movement | |
| CN210644400U (en) | Manual-automatic integrated wheelchair bed | |
| CN210301457U (en) | Liftable and deployable wheelchair | |
| CN116077282A (en) | Multifunctional wheelchair capable of being used for toilet | |
| CN221904587U (en) | Massage chair | |
| CN215535769U (en) | Rising and lying device | |
| CN217886497U (en) | Chair frame and massage armchair | |
| CN221357459U (en) | Electric wheelchair auxiliary device for old people | |
| CN218129013U (en) | Rotary folding medical bed | |
| CN221963239U (en) | Quasi-zero space sofa lying linkage mechanism | |
| CN215875280U (en) | Convenient wheelchair structure for department of neurology disease that shifts | |
| CN209995722U (en) | learning chair | |
| CN216962952U (en) | Adjustable support for sitting and lying and massage chair frame |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |