Manual-automatic integrated scooter
By combining automatic and manual drive components in the design of the mobility scooter, the problem of not being able to fold when the battery is depleted is solved, enabling the scooter to be folded and unfolded flexibly when the battery is depleted, thus improving ease of use.
Patent Information
- Application Number
- CN202520063605.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Traditional mobility scooters cannot automatically unfold or fold when the battery is depleted, which limits their use, especially in situations where outdoor charging is inconvenient.
A hybrid mobility scooter combining automatic and manual drive components was designed. Through the design of a linkage mechanism and a rotating seat, the seat component can be folded and unfolded, ensuring that manual operation is still possible when the battery is depleted.
It provides a backup manual operation mode when the battery is depleted, ensuring that the mobility scooter can be folded and unfolded normally, improving the flexibility and convenience of use.
Smart Images

Figure CN223702834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobility scooter technology, and in particular to a manual / automatic mobility scooter. Background Technology
[0002] Mobility scooters have become an essential item for people with mobility impairments and the elderly when going out. However, common mobility scooters require unfolding to use, which is time-consuming and laborious. Therefore, automatic folding mobility scooters have appeared on the market. Users can control the scooter to unfold and fold automatically by simply pressing a button, eliminating the need for users to spend time and effort unfolding and folding the scooter.
[0003] However, when the battery of a mobility scooter is depleted, the automatic unfolding and folding function cannot be used. It can only be folded or unfolded after charging. Since mobility scooters are mostly used outdoors, charging is relatively inconvenient. Therefore, mobility scooters with only automatic unfolding and folding functions will impose certain limitations on users. Utility Model Content
[0004] To address the aforementioned problems, this invention proposes a manual / automatic mobility scooter, which solves the issue that traditional mobility scooters cannot unfold or fold due to battery depletion.
[0005] The technical solution adopted by this utility model is: a manual / automatic mobility scooter, including a front frame assembly, a main frame, and a seat assembly. The front frame assembly and the main frame are rotatably connected. A rotating seat is rotatably connected to the main frame. A linkage mechanism is rotatably connected to the rotating seat. The linkage mechanism is connected to the seat assembly. An automatic drive assembly and a manual drive assembly are also provided for driving the rotating seat to flip. During the forward flipping of the rotating seat, the linkage mechanism pulls the seat assembly to fold as a whole.
[0006] With the above technical solution, when users need to fold the mobility scooter, they can activate the automatic drive component or use the manual drive component to drive the rotating seat to flip forward, and pull the seat component forward as a whole through the linkage mechanism, so that the seat component can finally fold sideways, realizing the folding of the mobility scooter. Users can use the automatic drive component to fold and unfold the mobility scooter, or switch to the manual drive component to fold and unfold the mobility scooter, avoiding the automatic drive component being unable to unfold or store the mobility scooter due to battery depletion, which is extremely convenient to use.
[0007] Furthermore, a sliding member is slidably connected to the rotating seat, the manual drive assembly is a pull rod, the pull rod and the sliding member are fixedly connected, the automatic drive assembly includes a linear drive device and a drive shaft, the main frame of the vehicle body is connected to the linear drive device, the rotating seat is connected to the drive shaft, an eccentric block is provided on the drive shaft, the movable end of the linear drive device is rotatably connected to the eccentric block, the movable end of the linear drive device can move laterally and drive the rotating seat to flip forward through the drive shaft, an extension plate is also provided on the drive shaft, a limit notch is provided on the extension plate, a connecting post is correspondingly provided on the sliding member, the limit notch can engage with the connecting post; the pull rod drives the sliding member to slide on the rotating seat to control the connection and disengagement of the limit notch and the connecting post.
[0008] With the above technical solution, when the user needs to manually fold the mobility scooter, he / she applies force to the pull rod, which drives the slider to slide on the rotating seat until the limiting notch on the drive shaft and the connecting post on the slider disengage from each other. The user can then flip the pull rod, thereby driving the rotating seat to flip and fold the mobility scooter. This allows the user to manually unfold and fold the mobility scooter when the battery is depleted or the automatic folding and unfolding function is limited, making it more convenient to use.
[0009] Furthermore, the sliding member is provided with a strip-shaped hole for avoiding the drive shaft, the strip-shaped hole including a first end and a second end; when the drive shaft contacts the first end, the limiting notch and the connecting post are connected, and when the drive shaft contacts the second end, the limiting notch and the connecting post are disengaged.
[0010] Through the above technical solution, the setting of the strip hole ensures that the drive shaft will not obstruct the movement of the sliding component, making the movement of the sliding component smoother. When the drive shaft contacts the first end, the limiting notch and the connecting post are connected. When the drive shaft contacts the second end, the limiting notch and the connecting post are disengaged. Users can judge the connection status of the drive shaft and the connecting post by observing the contact status between the drive shaft and the first and second ends in the strip hole, making it more convenient to use.
[0011] Furthermore, the slider is sheet-shaped, and the surface of the slider is always in contact with the inner wall of the rotating seat.
[0012] Through the above technical solution, the surface of the sheet-like sliding component and the inner wall of the rotating seat are always in close contact, making the sliding component very stable when sliding on the rotating seat. The sliding component will not wobble, making the user more efficient in unfolding and folding the mobility scooter.
[0013] Furthermore, a screw is also provided, and the rotating seat is provided with a linear track hole. The screw passes through the linear track hole and connects with the sliding member. The screw includes a cylindrical surface, which simultaneously contacts the inner walls on both sides of the linear track hole.
[0014] The above technical solution connects the slider and the linear track hole with screws, making the assembly of the slider and the rotating seat very convenient. The cylindrical surface of the screw contacts the inner walls on both sides of the linear track hole, making the connection between the screw and the rotating seat very tight. When the screw slides in the linear track hole with the slider, the pressure on the screw can be distributed to the rotating seat in time.
[0015] Furthermore, it also includes a locking piece and a spring. The locking piece is rotatably connected to the rotating seat. A limiting protrusion is provided at the upper end of the locking piece, and a corresponding limiting post is provided on the sliding member. The limiting post is used to drive the limiting protrusion to move. A hook is provided at the lower end of the locking piece, and a positioning post is provided on the main frame of the vehicle body. The hook can engage with the positioning post. A mounting post is also provided on the rotating seat. One end of the spring is connected to the locking piece, and the other end of the spring is connected to the mounting post.
[0016] With the above technical solution, when the user needs an automatically folding mobility scooter, they can activate the linear drive device, causing the movable end of the linear drive device to move laterally. This drives the transmission shaft to rotate through the eccentric block. The connection between the limiting notch and the connecting column causes the transmission shaft to drive the rotating seat and the sliding part to rotate. The limiting column can drive the limiting protrusion to move, causing the hook and the positioning column to disengage. The rotating seat can then flip forward on the main frame of the scooter, allowing the mobility scooter to be folded. The user only needs to activate the linear drive device to fold and unfold the mobility scooter, making it very convenient to use.
[0017] Furthermore, the linkage mechanism includes a connecting rod, a first support rod, and a second support rod. The connecting rod is rotatably connected to the rotating seat. The first support rod and the second support rod are pivotally connected. The upper end of the first support rod and / or the upper end of the second support rod are rotatably connected to the seat assembly. The lower end of the first support rod is rotatably connected to the vehicle body frame. The lower end of the second support rod is rotatably connected to the connecting rod.
[0018] With the above technical solution, when the user folds the mobility scooter, the driving force can be transmitted to the connecting rod, the first support rod, and the second support rod through the rotating seat, which makes the folding efficiency of the seat assembly higher, and the linkage mechanism has a simple structure and is very convenient to manufacture and assemble.
[0019] Furthermore, the seat assembly includes a seat, a mounting member, and a backrest. The mounting member is connected to the backrest, the seat is rotatably connected to the mounting member, the upper end of the first support rod is rotatably connected to the mounting member, and the upper end of the second support rod is rotatably connected to the seat.
[0020] Through the above technical solution, the first support rod, the second support rod, the mounting component, and the seat form a four-bar linkage, which allows the seat assembly and linkage mechanism to adapt to the movement of each component in a timely manner and meet the movement stroke of the mobility scooter when unfolding and folding. The backrest is connected to the mounting component, and the seat and the mounting component are rotatably connected, so that when the mobility scooter is folded laterally, the backrest can tilt with the rotation of the mounting component, thereby greatly reducing the overall volume of the seat assembly, taking up less space when storing the mobility scooter, and facilitating the movement and transportation of the user. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is an enlarged view of point A in the overall structural schematic diagram of this utility model;
[0024] Figure 3 This is a schematic diagram of the present invention in its semi-folded state;
[0025] Figure 4 This is a schematic diagram of the fully folded state of this utility model;
[0026] Figure 5 This is a schematic diagram of the main frame structure of the vehicle body of this utility model;
[0027] Figure 6 This is an exploded view of part of the structure of this utility model;
[0028] Figure 7 This is a schematic diagram of the seat assembly structure of this utility model;
[0029] The utility model reference information is as follows:
[0030] 1. Front frame assembly; 2. Main frame of the vehicle body; 3. Seat assembly; 301. Seat seat; 302. Mounting component; 303. Backrest; 4. Rotating seat; 5. Linkage mechanism; 501. Connecting rod; 502. First support rod; 503. Second support rod; 601. Locking piece; 602. Spring; 7. Sliding component; 8. Pull rod; 9. Linear drive device; 10. Drive shaft; 11. Eccentric block; 12. Extension piece; 13. Limiting notch; 14. Connecting post; 15. Strip hole; 16. First end; 17. Second end; 18. Screw; 181. Cylindrical surface; 19. Linear track hole; 20. Limiting protrusion; 21. Limiting post; 22. Hook; 23. Positioning post; 24. Mounting post; 25. Support seat; 26. Front wheel; 27. Rear wheel;
[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0035] See Figures 1 to 7As shown, a manual / automatic mobility scooter includes a front frame assembly 1, a main frame 2, and a seat assembly 3. The front frame assembly 1 and the main frame 2 are rotatably connected. A rotating seat 4 is rotatably connected to the main frame 2, and a linkage mechanism 5 is rotatably connected to the rotating seat 4. The linkage mechanism 5 is connected to the seat assembly 3. An automatic drive assembly and a manual drive assembly are also provided for driving the rotating seat 4 to flip. During the forward flipping of the rotating seat 4, the linkage mechanism 5 pulls the seat assembly 3 to fold as a whole. When the user needs to fold the mobility scooter, they can activate the automatic drive assembly or use the manual drive assembly to drive the rotating seat 4 to flip forward, and the linkage mechanism 5 will pull the seat assembly 3 forward, allowing the seat assembly 3 to finally fold laterally, thus folding the mobility scooter. The user can use the automatic drive assembly to fold and unfold the mobility scooter, or switch to the manual drive assembly to fold and unfold it, avoiding the automatic drive assembly's inability to unfold or store the scooter due to battery depletion, making it extremely convenient to use.
[0036] See Figures 1 to 7 As shown, a sliding member 7 is slidably connected to the rotating seat 4. The manual drive component is a pull rod 8, which is fixedly connected to the sliding member 7. The automatic drive component includes a linear drive device 9 and a drive shaft 10. The main frame of the vehicle body 2 is connected to the linear drive device 9, and the rotating seat 4 is connected to the drive shaft 10. An eccentric block 11 is provided on the drive shaft 10. The movable end of the linear drive device 9 is rotatably connected to the eccentric block 11. The movable end of the linear drive device 9 can move laterally and drive the rotating seat 4 to flip forward through the drive shaft 10. An extension piece 12 is also provided on the drive shaft 10. A limit notch 13 is provided on the extension piece 12. A connecting post 14 is correspondingly provided on the sliding member 7. The limit notch 13 can be engaged with the connecting post 14. The pull rod 8 drives the sliding member 7 to slide on the rotating seat 4 to control the connection and disengagement of the limit notch 13 and the connecting post 14. When the user needs to manually fold the mobility scooter, a force is applied to the pull rod 8, which drives the slider 7 to slide on the rotating seat 4 until the limiting notch 13 on the drive shaft 10 and the connecting post 14 on the slider 7 disengage. The user can then flip the pull rod 8, thereby driving the rotating seat 4 to flip and fold the mobility scooter. This allows the user to manually unfold and fold the mobility scooter when the battery is depleted or the automatic folding and unfolding function is limited, making it more convenient to use.
[0037] A support seat 25 is fixedly connected to the main frame 2 of the preferred vehicle body, and the linear drive device 9 is rotatably connected to the support seat 25.
[0038] The preferred linear drive device 9 is an electric push rod.
[0039] See Figure 1 , 2As shown in Figures 3 and 6, the sliding member 7 is provided with a strip-shaped hole 15 for avoiding the drive shaft 10. The strip-shaped hole 15 includes a first end 16 and a second end 17. When the drive shaft 10 contacts the first end 16, the limiting notch 13 and the connecting post 14 are connected. When the drive shaft 10 contacts the second end 17, the limiting notch 13 and the connecting post 14 are disengaged. The strip-shaped hole 15 ensures that the drive shaft 10 does not obstruct the movement of the sliding member 7, making the movement of the sliding member 7 smoother. When the drive shaft 10 contacts the first end 16, the limiting notch 13 and the connecting post 14 are connected. When the drive shaft 10 contacts the second end 17, the limiting notch 13 and the connecting post 14 are disengaged. Users can judge the connection status of the drive shaft 10 and the connecting post 14 by observing the contact status between the drive shaft 10 and the first end 16 and the second end 17 in the strip-shaped hole 15, making it more convenient to use.
[0040] See Figure 1 , 2 As shown in Figure 6, the slider 7 is sheet-shaped, and its surface is always in contact with the inner wall of the rotating seat 4. The constant contact between the sheet-shaped slider 7 and the inner wall of the rotating seat 4 makes the slider 7 very stable when sliding on the rotating seat 4, and the slider 7 will not wobble, making the user's unfolding and folding of the mobility scooter more efficient.
[0041] See Figure 1 , 2 As shown in Figure 6, a screw 18 is also provided. A linear track hole 19 is provided on the rotating seat 4. The screw 18 passes through the linear track hole 19 and connects with the sliding member 7. The screw 18 includes a cylindrical surface 181, which simultaneously contacts the inner walls on both sides of the linear track hole 19. Connecting the sliding member 7 and the linear track hole 19 with the screw 18 makes the assembly of the sliding member 7 and the rotating seat 4 very convenient. The simultaneous contact between the cylindrical surface 181 of the screw 18 and the inner walls on both sides of the linear track hole 19 makes the connection between the screw 18 and the rotating seat 4 very tight. Moreover, when the screw 18 slides in the linear track hole 19 as the sliding member 7 slides, the pressure on the screw 18 can be promptly distributed to the rotating seat 4.
[0042] See Figures 1-6As shown, it also includes a locking piece 601 and a spring 602. The locking piece 601 is rotatably connected to the rotating seat 4. A limiting protrusion 20 is provided at the upper end of the locking piece 601, and a limiting post 21 is correspondingly provided on the sliding member 7. The limiting post 21 is used to drive the limiting protrusion 20 to move. A hook 22 is provided at the lower end of the locking piece 601, and a positioning post 23 is provided on the main frame of the vehicle body 2. The hook 22 can engage with the positioning post 23. A mounting post 24 is also provided on the rotating seat 4. One end of the spring 602 is connected to the locking piece 601, and the other end of the spring 602 is connected to the mounting post 24. When the user needs the automatic folding mobility scooter, the linear drive device 9 can be activated, causing the movable end of the linear drive device 9 to move laterally. This drives the transmission shaft 10 to rotate through the eccentric block 11. The connection between the limiting notch 13 and the connecting post 14 causes the transmission shaft 10 to drive the rotating seat 4 and the sliding member 7 to rotate. The limiting post 21 can drive the limiting protrusion 20 to move, causing the hook 22 and the positioning post 23 to disengage. The rotating seat 4 can then flip forward on the main frame 2 of the scooter, allowing the mobility scooter to be folded. The user only needs to activate the linear drive device 9 to fold and unfold the mobility scooter, making it very convenient to use.
[0043] See Figures 1-5 As shown, the linkage mechanism 5 includes a connecting rod 501, a first support rod 502, and a second support rod 503. The connecting rod 501 is rotatably connected to the rotating seat 4. The first support rod 502 and the second support rod 503 are pivotally connected. The upper end of the first support rod 502 and / or the upper end of the second support rod 503 are rotatably connected to the seat assembly 3. The lower end of the first support rod 502 is rotatably connected to the main frame 2 of the vehicle body. The lower end of the second support rod 503 is rotatably connected to the connecting rod 501. When the user folds the mobility scooter, the driving force can be transmitted to the connecting rod 501, the first support rod 502, and the second support rod 503 through the rotating seat 4, making the folding efficiency of the seat assembly 3 higher. Moreover, the linkage mechanism 5 has a simple structure and is very convenient to manufacture and assemble.
[0044] The main frame 2 of the vehicle body is equipped with front wheels 26 on both sides; there are two connecting rods 501, and each connecting rod is equipped with a rear wheel 27.
[0045] See Figure 1 , 3As shown in Figures 4 and 7, the seat assembly 3 includes a seat 301, a mounting member 302, and a backrest 303. The mounting member 302 and the backrest 303 are connected, and the seat 301 and the mounting member 302 are rotatably connected. The upper end of the first support rod 502 is rotatably connected to the mounting member 302, and the upper end of the second support rod 503 is rotatably connected to the seat 301. The first support rod 502, the second support rod 503, the mounting member 302, and the seat 301 form a four-bar linkage, allowing the seat assembly 3 and the linkage mechanism 5 to adapt to the movement of each component in a timely manner and meet the movement stroke required for unfolding and folding the mobility scooter. The backrest 303 is connected to the mounting member 302, and the seat 301 and the mounting member 302 are rotatably connected, so that when the mobility scooter is folded laterally, the backrest 303 can tilt with the rotation of the mounting member 302, thereby greatly reducing the overall volume of the seat assembly 3, reducing the space occupied when storing the mobility scooter, and facilitating the movement and transport of the user.
[0046] In use, the user activates the linear drive device 9, causing its movable end to move laterally. This drives the transmission shaft 10 via the rotatably connected eccentric block 11, which in turn transmits driving force to the rotating seat 4 and the sliding member 7. The connection between the limiting notch 13 and the connecting post 14 allows the transmission shaft 10 to rotate the rotating seat 4 and the sliding member 7. The limiting post 21 drives the limiting protrusion 20 to move, disengaging the hook 22 from the positioning post 23. The rotating seat 4 can then flip on the main frame 2. The rotating seat 4 drives the connecting rod 501 forward, and the second support rod 503, through the pulling action of the connecting rod 501, causes the seat assembly 3 to move forward as a whole. The first support rod 502 moves forward synchronously. The device flips forward, causing the mounting component 302 to rotate. The backrest 303 can tilt as the mounting component 302 rotates, allowing the seat 301 and backrest 303 to be folded laterally onto the main frame 2 of the vehicle, making the mobility scooter easy to fold. Alternatively, the user can apply force to the pull rod 8, driving the sliding component 7 to slide on the rotating seat 4 until the drive shaft 10 and the second end 17 come into contact. At this point, the limiting notch 13 on the drive shaft 10 and the connecting post 14 on the sliding component 7 disengage. The user can then flip the pull rod 8, thereby driving the rotating seat 4 to flip and fold the mobility scooter. The user can easily switch between automatic and manual drive when folding and unfolding the mobility scooter, greatly expanding its range of use.
[0047] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A manual / automatic mobility scooter, comprising a front frame assembly (1), a main frame (2), and a seat assembly (3), characterized in that: The front frame assembly (1) and the main frame of the vehicle body (2) are rotatably connected. A rotating seat (4) is rotatably connected to the main frame of the vehicle body (2). A linkage mechanism (5) is rotatably connected to the rotating seat (4). The linkage mechanism (5) is connected to the seat assembly (3). An automatic drive assembly and a manual drive assembly are also provided for driving the rotating seat (4) to flip. During the forward flipping of the rotating seat (4), the linkage mechanism (5) pulls the seat assembly (3) to fold as a whole.
2. The automatic / manual mobility scooter according to claim 1, characterized in that: A sliding member (7) is slidably connected to the rotating seat (4). The manual drive assembly is a pull rod (8). The pull rod (8) and the sliding member (7) are fixedly connected. The automatic drive assembly includes a linear drive device (9) and a drive shaft (10). The main frame of the vehicle body (2) is connected to the linear drive device (9). The rotating seat (4) is connected to the drive shaft (10). An eccentric block (11) is provided on the drive shaft (10). The movable end of the linear drive device (9) is rotatably connected to the eccentric block (11). (9) The movable end can move laterally and drive the rotating seat (4) to flip forward through the transmission shaft (10). The transmission shaft (10) is also provided with an extension piece (12). The extension piece (12) is provided with a limiting notch (13). The sliding member (7) is provided with a corresponding connecting post (14). The limiting notch (13) can be engaged with the connecting post (14). The pulling rod (8) drives the sliding member (7) to slide on the rotating seat (4) to control the connection and disconnection of the limiting notch (13) and the connecting post (14).
3. The automatic / manual-automatic mobility scooter according to claim 2, characterized in that: The sliding member (7) is provided with a strip hole (15) for avoiding the drive shaft (10). The strip hole (15) includes a first end (16) and a second end (17). When the drive shaft (10) contacts the first end (16), the limiting notch (13) and the connecting post (14) are connected. When the drive shaft (10) contacts the second end (17), the limiting notch (13) and the connecting post (14) are disengaged.
4. The automatic / manual-automatic mobility scooter according to claim 3, characterized in that: The sliding member (7) is in the shape of a sheet, and the surface of the sliding member (7) is always in contact with the inner wall of the rotating seat (4).
5. A manual / automatic mobility scooter according to claim 2, 3, or 4, characterized in that: A screw (18) is also provided. A linear track hole (19) is provided on the rotating seat (4). The screw (18) passes through the linear track hole (19) and is connected to the sliding member (7). The screw (18) includes a cylindrical surface (181). The cylindrical surface (181) is in contact with the inner walls on both sides of the linear track hole (19).
6. The automatic / manual-automatic mobility scooter according to claim 5, characterized in that: It also includes a locking piece (601) and a spring (602). The locking piece (601) is rotatably connected to the rotating seat (4). A limiting protrusion (20) is provided on the upper end of the locking piece (601). A limiting post (21) is provided on the sliding member (7). The limiting post (21) is used to drive the limiting protrusion (20) to move. A hook (22) is provided on the lower end of the locking piece (601). A positioning post (23) is provided on the main frame of the vehicle body (2). The hook (22) can engage with the positioning post (23). A mounting post (24) is also provided on the rotating seat (4). One end of the spring (602) is connected to the locking piece (601), and the other end of the spring (602) is connected to the mounting post (24).
7. A manual / automatic mobility scooter according to claim 2, 3, 4, or 6, characterized in that: The linkage mechanism (5) includes a connecting rod (501), a first support rod (502), and a second support rod (503). The connecting rod (501) and the rotating seat (4) are rotatably connected. The first support rod (502) and the second support rod (503) are pivotally connected. The upper end of the first support rod (502) and / or the upper end of the second support rod (503) are rotatably connected to the seat assembly (3). The lower end of the first support rod (502) is rotatably connected to the main frame of the vehicle body (2). The lower end of the second support rod (503) is rotatably connected to the connecting rod (501).
8. A manual / automatic mobility scooter according to claim 7, characterized in that: The seat assembly (3) includes a seat (301), a mounting member (302), and a backrest (303). The mounting member (302) and the backrest (303) are connected. The seat (301) and the mounting member (302) are rotatably connected. The upper end of the first support rod (502) is rotatably connected to the mounting member (302), and the upper end of the second support rod (503) is rotatably connected to the seat (301).