Folding wheelchair
The linkage design of the anti-tilt wheel and the rear wheel enables the folding wheelchair to stand up after being folded, which solves the problem of inconvenient wheelchair storage and enables convenient storage and placement.
Patent Information
- Application Number
- CN202422378793.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-09-27
AI Technical Summary
After being folded, existing wheelchairs can usually only be placed flat or leaned against, making storage inconvenient.
A folding wheelchair is designed. By changing the relative positions of the anti-tip wheels and the rear wheels, they can jointly support the wheelchair in a standing state after folding. The anti-tip component and the linked folding mechanism are used to realize the standing storage of the wheelchair.
The wheelchair can be conveniently stored and placed after being folded, thereby improving the flexibility and convenience of use.
Smart Images
Figure CN223464212U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a folding wheelchair technical field, specifically relates to a folding wheelchair. BACKGROUND
[0002] The wheelchair is the walking aid of special people such as disabled, aged and weak and medical clinical rehabilitation patient etc., especially for the patient who cannot walk independently, usually adopts the mode of sitting wheelchair to replace walking, like this can make the patient get better treatment and rehabilitation, and facilitate the daily life of patient.
[0003] The existing wheelchair basically can realize folding function, but the wheelchair after folding usually can only lie flat or lean to place, and it is inconvenient when storing, so it is necessary to improve the folding wheelchair. SUMMARY
[0004] The utility model discloses at least one of the above-mentioned technical problems in the technical field is solved to some extent.
[0005] To achieve the above-mentioned purpose, the utility model provides a folding wheelchair, it includes: wheelchair main body and anti -topple subassembly,
[0006] The anti -topple subassembly has first connecting piece, second connecting piece and anti -topple wheel, the first connecting piece articulates the first support frame, the second connecting piece articulates the rear frame, the anti -topple wheel connects the first connecting piece and the second connecting piece, and is articulated with at least one of the first connecting piece and the second connecting piece, when folding wheelchair, the first support frame can drive the first connecting piece moves, to make the anti -topple wheel with the connecting place of the second connecting piece and the rear frame as fulcrum swing, and can with the rear wheel common support the folding wheelchair in standing state.
[0007] According to the folding wheelchair of the utility model embodiment, when folding the wheelchair main body, the anti -topple wheel is swung to change the relative position of the anti -topple wheel and the rear wheel, so that the anti -topple wheel and the rear wheel can commonly support the folding wheelchair in standing state, and it is convenient to store and place.
[0008] In addition, the folding wheelchair according to the above embodiment of the utility model can also have the following additional technical features:
[0009] Optionally, the wheelchair body comprises a backrest, a seat plate, an armrest, a second support frame and a front frame, the backrest is hinged with the armrest, the seat plate and the first support frame respectively, the rear frame is hinged with the first support frame, the front frame and the seat plate respectively, the second support frame is hinged with the first support frame and the front frame respectively, and the backrest, the seat plate, the front frame, the rear frame and the first support frame jointly form a linkage folding mechanism.
[0010] Further, a limiting structure capable of keeping the wheelchair in the unfolded state is matched between the rear frame and the first support frame.
[0011] Further, a limiting part is arranged on the rear frame, and the limiting part is adapted to abut against the first support frame to keep the wheelchair in the unfolded state.
[0012] Further, the wheelchair body comprises a handle, and the handle is connected to the backrest below the hinged position of the seat plate and the backrest.
[0013] Further, the wheelchair body comprises a third support frame, and the third support frame is hinged with the armrest and the seat plate respectively.
[0014] Further, a limiting switch capable of limiting relative rotation or fixation of the armrest and the third support frame is arranged at the hinged position of the armrest and the third support frame.
[0015] Further, the wheelchair body further comprises a footrest, and the footrest is hinged with the front frame.
[0016] Further, the seat plate and the backrest have a first hinged position and a second hinged position, a frame of the seat plate and the backrest form the first hinged position, a cushion of the seat plate and the backrest form the second hinged position, the second hinged position is below the first hinged position, and the handle is connected to the second hinged position.
[0017] Further, the front frame has a first cross beam, the first support frame has a second cross beam, and two ends of the second support frame are hinged with the first cross beam and the second cross beam respectively. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic view of the folding wheelchair according to the embodiment of the present application in the folded state.
[0019] Figure 2 It is a structural schematic view of the folding wheelchair according to the embodiment of the present application in the unfolded state.
[0020] Figure 3 It is Figure 2 It is a structural schematic view of the folding wheelchair according to the embodiment of the present application in the folded state.
[0021] Figure 4 For Figure 3 is an enlarged view of A in FIG. 1;
[0022] Reference signs:
[0023] Wheelchair body 10, rear frame 101, limiting part 1011, first support frame 102, backrest 103, seat plate 104, armrest 105, second support frame 106, front frame 107, third support frame 108, handle 109, limiting switch 110, foot pedal 111, anti-tilt assembly 20, first connecting piece 201, second connecting piece 202, anti-tilt wheel 203. DETAILED DESCRIPTION
[0024] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.
[0025] In order to better understand the above technical solutions, the exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.
[0026] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings and specific embodiments.
[0027] The following describes in detail the implementation of the folding wheelchair according to the embodiments of the present application with reference to Figures 1-4
[0028] The folding wheelchair according to the embodiments of the present application comprises a wheelchair body 10 and an anti-tilt assembly 20.
[0029] Specifically, the wheelchair body 10 has a rear frame 101 and a first support frame 102, the first support frame 102 is hinged to the rear frame 101; the anti-tilt assembly 20 has a first connecting piece 201, a second connecting piece 202 and an anti-tilt wheel 203, the first connecting piece 201 is hinged to the first support frame 102, the second connecting piece 202 is hinged to the rear frame 101, the anti-tilt wheel 203 is connected to the first connecting piece 201 and the second connecting piece 202, and is hinged to at least one of the first connecting piece 201 and the second connecting piece 202; when the wheelchair is folded, the first support frame 102 can drive the first connecting piece 201 to move, so that the anti-tilt wheel 203 swings around the hinge between the second connecting piece 202 and the rear frame 101, and can support the folded wheelchair together with the rear wheel in a standing state.
[0030] That is, during the folding process of the wheelchair body 10, the rear frame 101 and the first support frame 102 will swing relative to each other, and when the first support frame 102 swings, the first connecting piece 201 will move, and the first connecting piece 201 will drive the anti-tilt wheel 203 to swing around the hinge between the second connecting piece 202 and the rear frame 101, thereby changing the relative position of the anti-tilt wheel 203 and the rear wheel. After the wheelchair body 10 is folded, two-point support is formed between the anti-tilt wheel 203 and the rear wheel, so that the folded wheelchair can be in a standing state, which is convenient for storage and placement.
[0031] Therefore, by swinging the anti-tilt wheel 203 when the wheelchair body 10 is folded to change the relative position of the anti-tilt wheel 203 and the rear wheel, the anti-tilt wheel 203 and the rear wheel can support the folded wheelchair together in a standing state, which is convenient for storage and placement.
[0032] For the wheelchair body 10, the wheelchair body 10 comprises: a backrest 103, a seat plate 104, an armrest 105, a second support frame 106 and a front frame 107, the backrest 103 is hinged with the armrest 105, the seat plate 104 and the first support frame 102 respectively, the rear frame 101 is hinged with the first support frame 102, the front frame 107 and the seat plate 104 respectively, the second support frame 106 is hinged with the first support frame 102 and the front frame 107 respectively, and the backrest 103, the seat plate 104, the front frame 107, the rear frame 101 and the first support frame 102 jointly form a linkage folding mechanism. Understandably, by hinging the backrest 103 with the armrest 105, the seat plate 104 and the first support frame 102 respectively, hinging the rear frame 101 with the first support frame 102, the front frame 107 and the seat plate 104 respectively, and hinging the second support frame 106 with the first support frame 102 and the front frame 107 respectively, the backrest 103 and the armrest 105 can be folded on the seat plate 104, the front frame 107 can be folded on the rear frame 101, and the rear frame 101 can be folded on the seat plate 104 together with the second support frame 106 when the wheelchair body 10 is folded, at the same time, the upper end of the first support frame 102 swings rearward, the lower end of the first support frame 102 swings forward, and the anti-tilt wheel 203 swings upward with the connection between the second connecting piece 202 and the rear frame 101 as the fulcrum. Among them, an operation handle can be further arranged on the armrest 105, and a PVC mesh cloth can be installed on the backrest 103.
[0033] For the wheelchair unfolded state retention, the rear frame 101 and the first support frame 102 are matched with a limiting structure capable of keeping the wheelchair in the unfolded state. Understandably, since the main stress point of the wheelchair is on the rear frame 101 and the first support frame 102, by arranging the limiting structure between the rear frame 101 and the first support frame 102, the reliability and installability of the wheelchair in the unfolded state can be ensured.
[0034] For the limiting structure, the rear frame 101 is provided with a limiting portion 1011 adapted to abut against the first support frame 102 to keep the wheelchair in the unfolded state. Understandably, by the mutual abutment of the limiting portion 1011 and the first support frame 102, the rear frame 101 and the first support frame 102 can be kept relatively fixed, so that the wheelchair is kept in the unfolded state. Among them, the limiting portion 1011 can be an arc-shaped block protruding outward in the radial direction of the rear frame 101, and the first support frame 102 can be arc-shaped, which is convenient to fit and abut against the arc-shaped block, and at the same time, the arc-shaped arrangement of the first support frame 102 can make the hinge between the first support frame 102 and the backrest 103 be within the connection line between the hinge between the backrest 103 and the seat plate 104 and the hinge between the first support frame 102 and the rear frame 101, which is convenient to form a stress dead point and avoid safety accidents caused by outward folding between the backrest 103 and the first support frame 102 during use.
[0035] For the trigger of the folding of the wheelchair, the wheelchair body 10 comprises a pull handle 109 connected to the backrest 103 below the hinge between the seat plate 104 and the backrest 103. It can be understood that, by arranging the pull handle 109, the operator can better pull the force to move the hinge between the first support frame 102 and the backrest 103 outward to pass the force dead point, so that the wheelchair enters the folding state.
[0036] For the linkage of the folding of the armrest 105, the wheelchair body 10 comprises a third support frame 108 hingedly connected with the armrest 105 and the seat plate 104 respectively. It can be understood that, by arranging the third support frame 108, the third support frame 108, the armrest 105, the backrest 103 and the seat plate 104 together form a folding structure similar to a quadrilateral, so that the armrest 105 is linked and folded with the backrest 103 and the seat plate 104 when the wheelchair is folded, and the support strength of the armrest 105 is also enhanced. The upper end of the third support frame 108 can be hingedly connected to the middle part of the armrest 105, and the lower end can be hingedly connected to the position near the rear end of the seat plate 104.
[0037] For the trigger of the folding of the wheelchair, the hinge between the armrest 105 and the third support frame 108 is provided with a limit switch 110 capable of limiting the relative rotation or fixation of the two. It can be understood that, by arranging the limit switch 110, a double insurance structure can be formed with the pull handle 109, when the third support frame 108 is relatively fixed with the armrest 105, even if the pull handle 109 is pulled, the first support frame and the backrest 103 cannot be swung, when the limit switch 110 is triggered, the third support frame 108 and the armrest 105 can be swung relatively, and the operator can then pull the pull handle 109 to make the hinge between the first support frame and the backrest 103 pass the dead point, so that the wheelchair enters the folding state. The third support frame 108 and the armrest 105 can be movably provided with through holes, the two through holes are communicated in the unfolded state, the limit switch 110 can be extended into or withdrawn from the two through holes to switch the relative fixation and relative swing of the third support frame 108 and the armrest 105, and the limit switch 110 can be a button with a reset function.
[0038] Corresponding to the support of the user's feet, the wheelchair body 10 further comprises a footrest 111 hingedly connected to the front frame 107. It can be understood that, by hingedly connecting the front frame 107 with the footrest 111, the user's feet can be supported, and the folding of the footrest 111 can make the overall wheelchair occupy less space after folding. The footrest 111 can be hingedly connected to the front frame 107 near the upper end, and the upper end of the footrest 111 can abut against the front frame 107 to limit the downward swing of the footrest 111.
[0039] For the hinge of the seat plate 104 and the backrest 103, the seat plate 104 and the backrest 103 have a first hinge and a second hinge, the frame of the seat plate 104 and the backrest 103 form the first hinge, and the cushion of the seat plate 104 and the backrest 103 form the second hinge, the second hinge is below the first hinge, and the handle 109 is connected to the second hinge. Understandably, through the above arrangement, the connection strength of the cushion can be improved, and the cushion can be conveniently swung open with the second hinge as the fulcrum, thereby facilitating maintenance and other operations on the battery or electric control part below the cushion. The frame of the backrest 103 protrudes forward in the radial direction, the cushion is hinged to the protruding part, so that the second hinge is located below and in front of the first hinge, facilitating the concealment of the handle 109 and avoiding misoperation. The cushion and the backrest 103 can be detachably hinged, facilitating replacement of the cushion.
[0040] For the connection of the second support frame 106, the front frame 107 has a first cross beam, the first support frame 102 has a second cross beam, and the two ends of the second support frame 106 are hingedly connected to the first cross beam and the second cross beam one by one. Understandably, by hingedly connecting the two ends of the second support frame 106 to the first cross beam and the second cross beam one by one, the central space of the front frame 107 and the first support frame 102 is fully utilized, so that the second support frame 106 is located between the two rear frames 101, facilitating the installation of the battery on the second support frame 106, and improving the connection strength of the whole wheelchair.
[0041] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0042] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0043] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation.For ordinary skilled in the art, can understand the specific meaning of above-mentioned terms in the utility model according to specific circumstances.
[0044] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation.For ordinary skilled in the art, can understand the specific meaning of above-mentioned terms in the utility model according to specific circumstances.
[0045] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.
[0046] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.
Claims
1. A folding wheelchair, characterized in that, The wheelchair body and the anti-toppling assembly; The wheelchair body has a rear frame and a first support frame, and the first support frame is hinged to the rear frame; The anti-toppling assembly has a first connecting piece, a second connecting piece and an anti-toppling wheel, the first connecting piece is hinged to the first support frame, the second connecting piece is hinged to the rear frame, the anti-toppling wheel is connected to the first connecting piece and the second connecting piece, and is hinged to at least one of the first connecting piece and the second connecting piece, when the wheelchair is folded, the first support frame can drive the first connecting piece to move, so that the anti-toppling wheel swings around the connection between the second connecting piece and the rear frame, and can support the folded wheelchair in a standing state together with the rear wheels of the wheelchair. The wheelchair body includes a backrest, a seat plate, an armrest, a second support frame and a front frame, the backrest is hinged to the armrest, the seat plate and the first support frame, the rear frame is hinged to the first support frame, the front frame and the seat plate, the second support frame is hinged to the first support frame and the front frame, and the backrest, the seat plate, the front frame, the rear frame and the first support frame form a linkage folding mechanism.
2. The foldable wheelchair of claim 1, wherein, The rear frame and the first support frame are matched with a limiting structure capable of keeping the wheelchair in an unfolded state.
3. The foldable wheelchair of claim 2, wherein, The rear frame is provided with a limiting portion adapted to abut against the first support frame to keep the wheelchair in an unfolded state.
4. The foldable wheelchair of claim 2, wherein, The wheelchair body includes a handle connected to the backrest below the hinge between the seat plate and the backrest.
5. The foldable wheelchair of claim 2, wherein, The wheelchair body includes a third support frame hinged to the armrest and the seat plate.
6. The foldable wheelchair of claim 2, wherein, The hinge between the armrest and the third support frame is provided with a limiting switch capable of limiting the relative rotation or fixation of the two.
7. The foldable wheelchair of claim 6, wherein, The wheelchair body further includes a footrest hinged to the front frame.
8. The foldable wheelchair of claim 2, wherein, The seat plate and the backrest have a first hinge and a second hinge, the frame of the seat plate and the backrest form the first hinge, and the cushion of the seat plate and the backrest form the second hinge, the second hinge is located below the first hinge, and the handle is connected to the second hinge.
9. The foldable wheelchair of claim 5, wherein, The front frame has a first cross beam, the first support frame has a second cross beam, and the two ends of the second support frame are hinged to the first cross beam and the second cross beam one by one.
10. The foldable wheelchair of claim 2, wherein,