CN220558196U - Wheelchair with front wheel folding structure - Google Patents
Wheelchair with front wheel folding structure Download PDFInfo
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- CN220558196U CN220558196U CN202320888159.6U CN202320888159U CN220558196U CN 220558196 U CN220558196 U CN 220558196U CN 202320888159 U CN202320888159 U CN 202320888159U CN 220558196 U CN220558196 U CN 220558196U
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- hinged
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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Abstract
A wheelchair with a front wheel folding structure comprises a frame; the rear wheel assembly comprises two rear wheels rotatably arranged at the left side and the right side of the frame; the front wheel assembly comprises two front wheels hinged to the left side and the right side of the bottom of the frame, the front wheels are hinged to the bottom side of the frame through hinged plates, the hinged plates are of an L-shaped plate structure in vertical arrangement, each hinged plate comprises a vertical part and a horizontal part, the end parts of the horizontal parts are hinged to the bottom of the frame around a first direction, and the first direction is perpendicular to a plane where the horizontal parts are located; the wheel frame of the front wheel is rotationally connected with the end part of the vertical part around the second direction, and the second direction is consistent with the length direction of the vertical part. According to the wheelchair with the front wheel folding structure, when the wheelchair is required to be stored, the front wheels can be folded backwards to the inner sides of the rear wheels through pulling out the spring pins, and compared with a traditional wheelchair, the wheelchair with the folding structure has the advantages that the front wheels do not occupy extra space, and the wheelchair is more convenient to store.
Description
Technical Field
The utility model relates to the technical field of wheelchairs, in particular to a wheelchair with a front wheel folding structure.
Background
The folding wheelchair is designed into a foldable structure based on the original wheelchair so as to be convenient for storage and preservation. The application of the folding structure enables the wheelchair to have smaller volume when not in use, saves occupied space, and is particularly suitable for being stored in the trunk of the vehicle when traveling.
The folding wheelchair in the prior art comprises a foldable frame, a pair of rear wheels and a pair of front wheels, wherein the rear wheels are used as a main supporting structure of a foldable bracket, and the front wheels are used as a steering mechanism of the folding wheelchair to control the walking direction of the wheelchair. Thus, the wheels on the left and right sides of the prior art folding wheelchair support the foldable frame in the unfolded state. When in the folded state, the front wheels and the rear wheels of the folding wheelchair are drawn toward the middle so that the size of the folding wheelchair in the lateral direction becomes smaller.
However, the folding wheelchair of the prior art cannot be further reduced in volume when being stored, and the overall width becomes smaller after folding, but the overall length and the size are not changed, which is inconvenient for storing and depositing the folding wheelchair.
Based on this, chinese patent publication discloses a folding wheelchair (grant notice number: CN 216091113U), wherein the folding wheelchair comprises a wheelchair frame, a rear wheel assembly and a front wheel assembly. The rear wheel assembly is coupled to the rear end of the wheelchair frame, wherein the front wheel assembly includes two front wheels detachably disposed at the front end of the wheelchair frame, the front wheels including a front wheel unit coupled to the front wheel support shaft and a front wheel support shaft detachably disposed at the lower end of the wheelchair frame.
Above-mentioned scheme is with the front wheel design for adopting demountable installation structure to be connected between with the frame, with the front wheel dismantle when accomodating can, this scheme although solved the unable problem that reduces of wheelchair length to a certain extent, but it has the structure complicacy, the inconvenient problem of dismouting.
Therefore, in order to solve the above-mentioned problems, it is necessary to design a wheelchair having a front wheel folding structure.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a wheelchair with a front wheel folding structure. To achieve the above and other related objects, the present utility model provides the following technical solutions: a wheelchair having a front wheel folding structure, comprising:
a frame;
the rear wheel assembly comprises two rear wheels which are rotatably arranged at the left side and the right side of the frame;
the front wheel assembly comprises two front wheels hinged to the left side and the right side of the bottom of the frame, the front wheels are hinged to the bottom side of the frame through hinged plates, the hinged plates are of L-shaped plate structures which are vertically arranged, the hinged plates comprise vertical parts and horizontal parts, the end parts of the horizontal parts are hinged to the bottom of the frame around a first direction, and the first direction is perpendicular to a plane where the horizontal parts are located; the wheel frame of the front wheel is rotationally connected with the end part of the vertical part around a second direction, and the second direction is consistent with the length direction of the vertical part; in a use state, the top side of the horizontal part is propped against the bottom side of the frame; in the storage state, the front wheel is stored inside the rear wheel.
The preferable technical scheme is as follows: the bottom side of the frame is provided with an ear, and the end part of the horizontal part is hinged with the ear; the connecting part of the horizontal part and the vertical part is provided with a movable pin hole, the ear part is provided with a fixed pin hole, the frame is also provided with a spring pin, and the spring pin is correspondingly arranged with the movable pin hole and the fixed pin hole.
The preferable technical scheme is as follows: an extension part is formed on the outer side of the end part of the vertical part, a shaft sleeve is formed on the outer side of the extension part, and a rotating shaft on the top side of the wheel frame is rotatably arranged in the shaft sleeve.
Due to the application of the technical scheme, the utility model has the following beneficial effects:
according to the wheelchair with the front wheel folding structure, when the wheelchair is required to be stored, the front wheels can be folded backwards to the inner sides of the rear wheels through pulling out the spring pins, and compared with a traditional wheelchair, the wheelchair with the folding structure has the advantages that the front wheels do not occupy extra space, and the wheelchair is more convenient to store.
Drawings
Fig. 1 is a schematic perspective view of a wheelchair according to the present utility model in a normal use state.
Fig. 2 is a schematic perspective view of a wheelchair according to the present utility model in a partially folded state.
Fig. 3 is a schematic perspective view of the wheelchair according to the present utility model in a fully folded state.
FIG. 4 is an enlarged schematic view of FIG. 1 at A
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1-4. It should be noted that, in the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," "overhang," and the like do not denote that the component is required to be absolutely horizontal or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
According to one general technical concept of the present utility model, there is provided a wheelchair having a front wheel folding structure, including a frame 1; the rear wheel assembly comprises two rear wheels 2 rotatably arranged on the left side and the right side of the frame 1; the front wheel assembly comprises two front wheels 3 hinged on the left side and the right side of the bottom of the frame 1, the front wheels 3 are hinged on the bottom side of the frame 1 through hinge plates 4, the hinge plates 4 are of an L-shaped plate structure which is vertically arranged, the hinge plates 4 comprise vertical parts 41 and horizontal parts 42, the end parts of the horizontal parts 42 are hinged with the bottom of the frame 1 around a first direction, and the first direction is perpendicular to a plane where the horizontal parts 42 are located; the wheel frame of the front wheel 3 is rotationally connected with the end part of the vertical part 41 around the second direction, and the second direction is consistent with the length direction of the vertical part 41; in the use state, the top side of the horizontal part 42 is propped against the bottom side of the frame 1; in the stored state, the front wheel 3 is stored inside the rear wheel 2.
FIG. 1 is a schematic perspective view showing a wheelchair according to an exemplary embodiment of the present utility model in a normal use state; FIG. 2 is a schematic perspective view showing a wheelchair according to an exemplary embodiment of the present utility model in a partially folded state; FIG. 3 is a schematic perspective view showing a wheelchair according to an exemplary embodiment of the present utility model in a fully folded state; fig. 4 is an enlarged schematic view at a in fig. 1.
As shown in fig. 1 to 4, in an exemplary embodiment of the present utility model, a wheelchair having a front wheel folding structure is disclosed, comprising a frame 1; the rear wheel assembly comprises two rear wheels 2 rotatably arranged on the left side and the right side of the frame 1; the front wheel assembly comprises two front wheels 3 hinged on the left side and the right side of the bottom of the frame 1, the front wheels 3 are hinged on the bottom side of the frame 1 through hinge plates 4, the hinge plates 4 are of an L-shaped plate structure which is vertically arranged, the hinge plates 4 comprise vertical parts 41 and horizontal parts 42, the end parts of the horizontal parts 42 are hinged with the bottom of the frame 1 around a first direction, and the first direction is perpendicular to a plane where the horizontal parts 42 are located; the wheel frame of the front wheel 3 is rotationally connected with the end part of the vertical part 41 around the second direction, and the second direction is consistent with the length direction of the vertical part 41; in the use state, the top side of the horizontal part 42 is propped against the bottom side of the frame 1; in the stored state, the front wheel 3 is stored inside the rear wheel 2. The structure can directly store the front wheel 3 inside the rear wheel 2, so that the length of the wheelchair is reduced, and compared with the prior art in which the front wheel is disassembled and stored, the structure has the characteristics of simple structure, convenient use and the like.
As shown in fig. 1 to 4, in the illustrated embodiment, the bottom side of the frame 1 is formed with an ear 11, and an end of the horizontal portion 42 is hinged to the ear 11. On the one hand, the ear 11 is intended to hinge with the end of the horizontal portion 42 of the hinge plate 4; on the other hand, in the normal use state of the front wheel 3, the lug 11 is positioned at the inner side of the horizontal part 42 of the hinge plate 4, so that a certain limiting and supporting effect can be achieved on the lug, and the overall stability is improved. The joint of the horizontal part 42 and the vertical part 41 is provided with a movable pin hole, the lug 11 is provided with a fixed pin hole, the frame 1 is also provided with a spring pin 5, and the spring pin, the movable pin hole and the fixed pin hole are correspondingly arranged; namely, the spring pin 5 and the fixing pin hole form a locking structure, the movable pin hole is used as a lock hole, and under the normal use state of the front wheel 3, the spring pin 5 sequentially penetrates through the movable pin hole and the fixing pin hole to lock the hinge plate 4, so that the hinge plate is prevented from loosening, and the use stability of the hinge plate is improved.
As shown in fig. 1 to 4, in the illustrated embodiment, an extension 411 is formed outside an end of the vertical portion 41, a boss 412 is formed outside the extension 411, and a rotation shaft of a top side of the wheel carrier is rotatably provided in the boss 412. The extension 411 is mainly used for avoiding interference between the front wheel 3 and the frame 1 during the storage process, so that the front wheel 3 is folded and stored on two sides of the frame 1.
Therefore, the utility model has the following advantages:
according to the wheelchair with the front wheel folding structure, when the wheelchair is required to be stored, the front wheels can be folded backwards to the inner sides of the rear wheels through pulling out the spring pins, and compared with a traditional wheelchair, the wheelchair with the folding structure has the advantages that the front wheels do not occupy extra space, and the wheelchair is more convenient to store. The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations which can be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the present utility model shall be covered by the appended claims.
Claims (3)
1. A wheelchair having a front wheel folding structure, comprising:
a frame;
the rear wheel assembly comprises two rear wheels which are rotatably arranged at the left side and the right side of the frame;
the front wheel assembly comprises two front wheels hinged to the left side and the right side of the bottom of the frame, the front wheels are hinged to the bottom side of the frame through hinged plates, the hinged plates are of L-shaped plate structures which are vertically arranged, the hinged plates comprise vertical parts and horizontal parts, the end parts of the horizontal parts are hinged to the bottom of the frame around a first direction, and the first direction is perpendicular to a plane where the horizontal parts are located; the wheel frame of the front wheel is rotationally connected with the end part of the vertical part around a second direction, and the second direction is consistent with the length direction of the vertical part; in a use state, the top side of the horizontal part is propped against the bottom side of the frame; in the storage state, the front wheel is stored inside the rear wheel.
2. A wheelchair having a front wheel folding structure as claimed in claim 1, wherein: the bottom side of the frame is provided with an ear, and the end part of the horizontal part is hinged with the ear; the connecting part of the horizontal part and the vertical part is provided with a movable pin hole, the ear part is provided with a fixed pin hole, the frame is also provided with a spring pin, and the spring pin is correspondingly arranged with the movable pin hole and the fixed pin hole.
3. A wheelchair having a front wheel folding structure as claimed in claim 1, wherein: an extension part is formed on the outer side of the end part of the vertical part, a shaft sleeve is formed on the outer side of the extension part, and a rotating shaft on the top side of the wheel frame is rotatably arranged in the shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320888159.6U CN220558196U (en) | 2023-04-19 | 2023-04-19 | Wheelchair with front wheel folding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320888159.6U CN220558196U (en) | 2023-04-19 | 2023-04-19 | Wheelchair with front wheel folding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220558196U true CN220558196U (en) | 2024-03-08 |
Family
ID=90093086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320888159.6U Active CN220558196U (en) | 2023-04-19 | 2023-04-19 | Wheelchair with front wheel folding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220558196U (en) |
-
2023
- 2023-04-19 CN CN202320888159.6U patent/CN220558196U/en active Active
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