Automatic folding mechanism of electric vehicle
By designing the automatic folding mechanism of the electric vehicle, and using the connecting rod structure and push rod motor to realize the automatic deployment and folding of the electric vehicle, the problem of complexity of the inability to automatically fold and operate in traditional electric wheelchairs is solved, and the portability and storage convenience of the equipment are improved.
Patent Information
- Application Number
- CN202421015288.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-10
AI Technical Summary
Traditional electric wheelchairs cannot be folded automatically, users need a large space when carrying and storing, and the folding operation is complicated and cumbersome.
An automatic folding mechanism for electric vehicles is designed, including a base frame, seat frame, support and push rod motor, which realizes the synchronous deployment and folding of multiple components through the connecting rod structure and locking mechanism, simplifying operation and reducing the size of the equipment.
It realizes the automatic deployment and folding of electric vehicles, simplifies the operation process, reduces the folded size, and is easy to carry and store.
Smart Images
Figure CN222304189U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric vehicles, in particular to an automatic folding mechanism for an electric vehicle. Background Art
[0002] Electric wheelchairs are suitable for the elderly and frail, as well as for people with lower limb disabilities or patients who cannot walk. They have the advantages of energy saving and environmental protection, long-lasting energy supply and adjustable speed, and no longer rely on human push and pull to move forward.
[0003] Most traditional electric wheelchairs cannot be folded automatically, and because the wheelchair itself is large, users need a lot of space to carry or store it, which brings inconvenience to users. Existing folding electric vehicles generally need to be locked by a separate locking mechanism, and the operation structure is complex and the operation is cumbersome. Utility Model Content
[0004] The technical problem solved by the utility model is to provide an electric vehicle that can automatically unfold, support and lock, so as to solve the problems raised in the above-mentioned background technology.
[0005] The technical problem solved by the utility model is achieved by adopting the following technical scheme: an automatic folding mechanism of an electric vehicle, comprising a base frame and a seat frame which can be unfolded and folded and installed on the upper end of the base frame, the base frame is connected to the seat frame through a support member, one side of the base frame is provided with a driving assembly for driving the support member to rotate, so as to control the lifting and lowering adjustment of the seat frame, the driving assembly comprises a connecting rod member and a push rod motor for controlling the movement of the connecting rod member, one side of the base frame is provided with a fixed seat which is arranged in cooperation with the connecting rod member, the fixed seat is provided with a fixed plate, one side of the connecting rod member is rotatably installed on the fixed seat, and the other side can be placed on the fixed plate to lock the support member; the front end of the base frame is provided with a foot pedal which is linked to the bottom of the support member, and one side of the upper end of the seat frame is provided with a backrest frame which is linked to the top of the support member, so as to realize the synchronous folding of multiple components of the electric vehicle.
[0006] As a further solution of the utility model:
[0007] The connecting rod member includes a connecting plate and a push plate rotatably connected to the connecting plate. The push rod motor is rotatably installed at a corresponding position of the base frame. The output rod of the push rod motor is rotatably connected to the push plate. The outer end of the connecting plate is rotatably installed at a corresponding position of the support member. The outer end of the push plate is rotatably installed on one side of the fixed seat through a first shaft rod. The push plate is fixedly provided with a pressure plate on one side of the first shaft rod, and the pressure plate is matched with the fixed plate.
[0008] As a further solution of the utility model:
[0009] The support members are provided in two groups and are symmetrically mounted on both sides of the seat frame. The connecting rod member is arranged between the two groups of support members and connected with the two groups of support members so that the two groups of support members can move synchronously.
[0010] As a further solution of the utility model:
[0011] The support member is a parallel connecting rod structure, and the support member includes a first support seat and a second support seat, a first support plate and a second support plate rotatably installed between the first support seat and the second support seat, the first support seat is fixedly installed on the base frame, and the second support seat is installed at the lower end of the seat frame. The first support plate and the second support plate are arranged parallel to each other and are rotatably installed at corresponding positions of the first support seat and the second support seat respectively to keep the bottom of the seat frame in a horizontal state.
[0012] As a further solution of the utility model:
[0013] The upper end of the connecting plate is rotatably connected to the second supporting plates on both sides through a second shaft rod.
[0014] As a further solution of the utility model:
[0015] One side of the foot pedal is rotatably mounted on the base frame via a third shaft rod, and an angle plate is fixedly provided on the upper end of the foot pedal close to the base frame. The angle plate is connected to the second support plate via a first connecting rod, and one end of the first connecting rod is rotatably mounted on the angle plate via a pin shaft, and the other side is rotatably mounted on the corresponding position of the second support plate via a pin shaft.
[0016] As a further solution of the utility model:
[0017] The two sides of the backrest frame are rotatably connected to the seat frame through a rotating support, a first connecting seat is provided at the lower end of the middle part of the backrest frame, the first connecting seat is connected to the second support plate through a second connecting rod, a second connecting seat is provided at a corresponding position of the upper end of the second support plate corresponding to the second connecting rod, one end of the second connecting rod is rotatably installed on the first connecting seat, and the other end is rotatably installed on the second connecting seat.
[0018] As a further solution of the utility model:
[0019] An armrest is also provided on one side of the back frame, and the armrest is linked to the back frame. A third support seat is provided at the corresponding position of the lower end of the armrest. One side of the armrest is rotatably installed at the corresponding position of the back frame, and the third support seat is connected to the seat frame through a support rod. The upper end of the support rod is rotatably connected to the third support seat, and the lower end of the support rod is rotatably connected to the seat frame.
[0020] Compared with the prior art, the utility model has the following beneficial effects: the base frame, support member, connecting plate and push plate in the device form a four-link structure. When the push motor pushes the push plate to rotate to a certain angle, the push plate is pressed against the fixed plate through the pressure plate to limit the rotation of the push plate, thereby realizing the automatic locking of the connecting plate and the push plate and improving the stability of the equipment support. The foot pedal and the backrest frame are linked with the support member, and the armrest is linked with the backrest frame to realize the automatic unfolding and folding of multiple components of the electric vehicle, simplifying the folding steps of the electric vehicle and facilitating the operation of personnel. The folding arrangement of multiple components further reduces the size of the folded electric vehicle and facilitates the carrying and storage of personnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0022] Figure 2 It is a partial cross-sectional front view structural schematic diagram of the utility model;
[0023] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;
[0024] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;
[0025] Markings in the figure: 1. base frame; 2. seat frame; 3. support member; 4. push rod motor; 5. foot pedal; 6. backrest frame; 31. first support seat; 32. second support seat; 33. first support plate; 34. second support plate; 41. fixed seat; 42. fixed plate; 43. connecting plate; 44. push plate; 45. first shaft rod; 46. pressure plate; 47. second shaft rod; 51. third shaft rod; 52. angle plate; 53. first connecting rod; 61. rotating support; 62. first connecting seat; 63. second connecting rod; 64. second connecting seat; 65. armrest; 66. third support seat; 67. support rod. DETAILED DESCRIPTION
[0026] In order to make the technical means for realizing the utility model, creative features, objectives and effects easy to understand, the utility model is further explained below with reference to specific illustrations.
[0027] like Figures 1 to 4As shown, this embodiment provides an automatic folding mechanism for an electric vehicle, including a base frame 1 and a seat frame 2 that can be unfolded and folded and installed on the upper end of the base frame 1. The base frame 1 is connected to the seat frame 2 through a support member 3. A driving assembly for driving the support member 3 to rotate is provided on one side of the base frame 1 to control the lifting and lowering adjustment of the seat frame 2. The driving assembly includes a connecting rod member and a push rod motor 4 for controlling the movement of the connecting rod member. A fixed seat 41 that is arranged in cooperation with the connecting rod member is provided on one side of the base frame 1. A fixed plate 42 is provided on the fixed seat 41. One side of the connecting rod member is rotatably mounted on the fixed seat 41, and the other side can be placed on the fixed plate 42 to lock the support member 3. A foot pedal 5 that is linked to the bottom of the support member 3 is provided at the front end of the base frame 1, and a backrest frame 6 that is linked to the top of the support member 3 is provided on one side of the upper end of the seat frame 2 to realize synchronous folding of multiple components of the electric vehicle.
[0028] like Figure 2 and Figure 4 As shown, in this embodiment, the connecting rod member includes a connecting plate 43 and a push plate 44 rotatably connected to the connecting plate 43, the push rod motor 4 is rotatably installed at the corresponding position of the base frame 1, the output rod of the push rod motor 4 is rotatably connected to the push plate 44, the outer end of the connecting plate 43 is rotatably installed at the corresponding position of the support member 3, the outer end of the push plate 44 is rotatably installed on one side of the fixed seat 41 through the first shaft rod 45, and the push plate 44 is located on one side of the first shaft rod 45 and is fixed with a pressing plate 46, and the pressing plate 46 is arranged in cooperation with the fixed plate 42. Specifically, when the connecting plate 43 and the push plate 44 rotate to a certain angle, the push plate 44 is pressed against the fixed plate 42 through the pressing plate 46 to limit the rotation of the push plate 44, so as to realize the automatic locking of the connecting plate 43 and the push plate 44 and improve the stability of the equipment support. When folding, the push rod motor 4 pulls the push plate 44 to move outward, the pressing plate 46 on the push plate 44 is away from the fixed plate 42, and the connecting plate 43 and the push plate 44 are folded, thereby controlling the rotation and folding of the support member 3.
[0029] like Figure 1 and Figure 2 As shown, in this embodiment, two groups of support members 3 are provided and symmetrically installed on both sides of the seat frame 2. The connecting rod member is arranged between the two groups of support members 3 and connected with the two groups of support members 3 so that the two groups of support members 3 can move synchronously. The support member 3 is a parallel connecting rod structure, and the support member 3 includes a first support seat 31 and a second support seat 32, a first support plate 33 and a second support plate 34 rotatably installed between the first support seat 31 and the second support seat 32. The first support seat 31 is fixedly installed on the base frame 1, and the second support seat 32 is installed at the lower end of the seat frame 2. The first support plate 33 and the second support plate 34 are arranged parallel to each other and are rotatably installed at the corresponding positions of the first support seat 31 and the second support seat 32 respectively to keep the bottom of the seat frame 2 in a horizontal state. The upper end of the connecting plate 43 is rotatably connected with the second support plates 34 on both sides through the second shaft 47.
[0030] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, one side of the footrest 5 is rotatably mounted on the base frame 1 through the third shaft 51, and a corner plate 52 is fixedly provided on the upper end of the footrest 5 close to the base frame 1, and the corner plate 52 is connected to the second support plate 34 through the first connecting rod 53, and one end of the first connecting rod 53 is rotatably mounted on the corner plate 52 through a pin, and the other end is rotatably mounted at a corresponding position of the second support plate 34 through a pin. Specifically, when the second support plate 34 rotates, the second support plate 34 pulls the footrest 5 to rotate along the third shaft 51 through the first connecting rod 53, so that the footrest 5 can be unfolded or folded.
[0031] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, both sides of the backrest frame 6 are rotatably connected to the seat frame 2 through a rotating support 61, a first connecting seat 62 is provided at the lower end of the middle part of the backrest frame 6, the first connecting seat 62 is connected to the second support plate 34 through a second connecting rod 63, a second connecting seat 64 is provided at a corresponding position of the upper end of the second support plate 34 corresponding to the second connecting rod 63, one end of the second connecting rod 63 is rotatably mounted on the first connecting seat 62, and the other end is rotatably mounted on the second connecting seat 64. Specifically, when the second support plate 34 rotates, the second support plate 34 pulls the backrest frame 6 to rotate along the rotating support 61 through the second connecting rod 63, so as to realize the unfolding or folding of the backrest frame 6. An armrest 65 is also provided on one side of the backrest frame 6, and the armrest 65 is arranged in linkage with the backrest frame 6. A third support seat 66 is provided at a corresponding position of the lower end of the armrest 65. One side of the armrest 65 is rotatably mounted at a corresponding position of the backrest frame 6. The third support seat 66 is connected to the seat frame 2 through a support rod 67. The upper end of the support rod 67 is rotatably connected to the third support seat 66, and the lower end of the support rod 67 is rotatably connected to the seat frame 2. Specifically, when the backrest frame 6 is unfolded, the armrest 65 is pulled to unfold, and when the backrest frame 6 is folded, the armrest 65 pushes the support rod 67 to rotate and forms a folded state, thereby realizing a linkage arrangement with the backrest frame 6.
[0032] The working principle of the utility model is as follows: when the electric vehicle is unfolded, the push rod motor 4 pushes the push plate 44 to rotate along the first shaft rod 45, and the support member 3 is gradually unfolded by the driving of the connecting plate 43 until the pressure plate 46 is against the fixed plate 42, so as to realize the locking support of the support member 3. During the unfolding process of the support member 3, the second support plate 34 pushes the foot pedal 5 to unfold through the first connecting rod 53, and the upper end of the second support plate 34 pushes the backrest frame 6 to gradually unfold along the rotating support through the second connecting rod, and the handrail is pulled to unfold during the rotation of the backrest frame 6, so as to realize the automatic unfolding of the whole vehicle. Conversely, the push motor pulls the push plate 44 to rotate, so that the pressure plate 46 is separated from the fixed plate 42, the connecting plate 43 and the push plate 44 are folded, and the support member 3 is pulled to fold, the second support plate 34 pulls the foot pedal 5 to fold through the first connecting rod 53, and the upper end of the second support plate 34 pulls the backrest frame 6 to gradually fold along the rotating support through the second connecting rod, and the backrest frame 6 pulls the handrail to fold to form a folded state.
[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. It should be noted that in this article, if there are first and second relationship terms such as only used to distinguish one entity or operation from another entity or operation, it does not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or equipment. Without more constraints, an element defined by the phrase "comprising a..." does not exclude the existence of other identical elements in the process, method, article or apparatus comprising the element.
Claims
1. An automatic folding mechanism for an electric vehicle, comprising a base frame and a seat frame which can be unfolded and folded and mounted on the upper end of the base frame, characterized in that: The base frame is connected to the seat frame through a support member, and a driving assembly is provided on one side of the base frame for driving the support member to rotate to control the lifting and lowering adjustment of the seat frame. The driving assembly includes a connecting rod member and a push rod motor for controlling the movement of the connecting rod member. A fixed seat is provided on one side of the base frame to cooperate with the connecting rod member, and a fixed plate is provided on the fixed seat. One side of the connecting rod member is rotatably mounted on the fixed seat, and the other side can be placed on the fixed plate to lock the support member; a foot pedal is provided at the front end of the base frame to be linked to the bottom of the support member, and a backrest frame is provided on one side of the upper end of the seat frame to realize synchronous folding of multiple components of the electric vehicle.
2. The automatic folding mechanism of the electric vehicle according to claim 1, characterized in that: The connecting rod member includes a connecting plate and a push plate rotatably connected to the connecting plate. The push rod motor is rotatably installed at a corresponding position of the base frame. The output rod of the push rod motor is rotatably connected to the push plate. The outer end of the connecting plate is rotatably installed at a corresponding position of the support member. The outer end of the push plate is rotatably installed on one side of the fixed seat through a first shaft rod. The push plate is fixedly provided with a pressure plate on one side of the first shaft rod, and the pressure plate is matched with the fixed plate.
3. The automatic folding mechanism of the electric vehicle according to claim 2, characterized in that: The support members are provided in two groups and are symmetrically mounted on both sides of the seat frame. The connecting rod member is arranged between the two groups of support members and connected with the two groups of support members so that the two groups of support members can move synchronously.
4. The automatic folding mechanism of the electric vehicle according to claim 3, characterized in that: The support member is a parallel connecting rod structure, and the support member includes a first support seat and a second support seat, a first support plate and a second support plate rotatably installed between the first support seat and the second support seat, the first support seat is fixedly installed on the base frame, and the second support seat is installed at the lower end of the seat frame. The first support plate and the second support plate are arranged parallel to each other and are rotatably installed at corresponding positions of the first support seat and the second support seat respectively to keep the bottom of the seat frame in a horizontal state.
5. The automatic folding mechanism of the electric vehicle according to claim 4, characterized in that: The upper end of the connecting plate is rotatably connected to the second supporting plates on both sides through a second shaft rod.
6. The automatic folding mechanism of the electric vehicle according to claim 4, characterized in that: One side of the foot pedal is rotatably mounted on the base frame via a third shaft rod, and an angle plate is fixedly provided on the upper end of the foot pedal close to the base frame. The angle plate is connected to the second support plate via a first connecting rod, and one end of the first connecting rod is rotatably mounted on the angle plate via a pin shaft, and the other side is rotatably mounted on the corresponding position of the second support plate via a pin shaft.
7. The automatic folding mechanism of the electric vehicle according to claim 4, characterized in that: The two sides of the backrest frame are rotatably connected to the seat frame through a rotating support, a first connecting seat is provided at the lower end of the middle part of the backrest frame, the first connecting seat is connected to the second support plate through a second connecting rod, a second connecting seat is provided at a corresponding position of the upper end of the second support plate corresponding to the second connecting rod, one end of the second connecting rod is rotatably installed on the first connecting seat, and the other end is rotatably installed on the second connecting seat.
8. The automatic folding mechanism of the electric vehicle according to claim 7, characterized in that: An armrest is also provided on one side of the back frame, and the armrest is linked to the back frame. A third support seat is provided at the corresponding position of the lower end of the armrest. One side of the armrest is rotatably installed at the corresponding position of the back frame, and the third support seat is connected to the seat frame through a support rod. The upper end of the support rod is rotatably connected to the third support seat, and the lower end of the support rod is rotatably connected to the seat frame.