A lightweight scooter

By using an integrated carbon fiber chassis and locking mechanism, the stability problem of the split chassis structure is solved, achieving lightweight, stable and safer mobility scooter, and providing a convenient user experience.

CN224676308UActive Publication Date: 2026-08-25DONGGUAN YATU IND CO LTD
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Patent Information

Application Number
CN202522117230.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-08-25
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

The existing split chassis structure of mobility scooters results in a large number of parts and connection points, leading to lower stability. They are prone to loosening, deformation, or damage on bumpy roads, affecting overall performance and safety.

Method used

It adopts an integrated carbon fiber chassis structure, combined with a rotating connection and locking mechanism, to reduce the number of parts and connection points. The carbon fiber material improves stability, and the locking mechanism ensures the stability of the seat and steering control.

Benefits of technology

It improves the stability and durability of the chassis, reduces safety hazards caused by loose connections, optimizes the structure, and provides a convenient, safe and comfortable travel experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of lightweight scooter, including chassis and folding seat movably arranged on chassis, the chassis is integrated molding component, and direction control mechanism is also rotatably connected on chassis;Integrated molding chassis structure is adopted, compared with traditional split chassis, the number of parts and connecting point are reduced, by integral integrated molding, avoid the problem of looseness caused by the connection of multiple parts, when driving on bumpy road, chassis will not abnormally shake or damage due to parts looseness, thereby reducing the security risk caused by chassis failure, solve the problem that the stability of chassis is relatively low, prone to looseness, deformation or even damage during long-term use, thereby affecting the overall performance and safety of scooter.
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Description

Technical Field

[0001] This utility model relates to the field of transportation technology, and in particular to a lightweight personal mobility vehicle. Background Technology

[0002] In today's society, with the increasing aging population and the diversification of people's travel needs, mobility scooters, as a convenient means of transportation, are gaining popularity. Mobility scooters are typically used by the elderly, disabled, or those who need assisted travel over short distances; their design rationality and safety are crucial to the user's travel experience.

[0003] Most commuter vehicles on the market currently use a split-type chassis, which has some obvious limitations. Split-type chassis are typically assembled from multiple parts connected by welding, bolts, etc. The large number of parts and connection points makes the overall chassis relatively less stable. During long-term use, especially when driving on bumpy roads, these connection points are prone to loosening, deformation, or even damage, thus affecting the overall performance and safety of the commuter vehicle. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, this utility model provides a lightweight personal mobility vehicle.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A lightweight personal mobility vehicle includes a chassis and a folding seat movably mounted on the chassis. The chassis is a one-piece molded component, and a direction control mechanism is rotatably connected to the chassis.

[0007] Furthermore, the folding seat includes a first support frame and a second support frame rotatably connected to the chassis, a seat plate rotatably connected to the first support frame, and a backrest rotatably connected to the seat plate, with one end of the second support frame fixedly connected to the backrest.

[0008] Furthermore, the chassis is provided with a first connecting part for connecting the first support frame and a second connecting part for connecting the second support frame. The first support frame is symmetrically provided with a first connecting foot at its lower part, and the second support frame is symmetrically provided with a second connecting foot at its lower part. One end of the first connecting foot is pinned to the first connecting part, and one end of the second connecting foot is pinned to the second connecting part.

[0009] Furthermore, one end of the seat plate is pinned to the backrest, and a first locking mechanism is provided at the connection between the seat plate and the backrest. The first locking mechanism is used to fix the folding angle between the seat plate and the backrest.

[0010] Furthermore, the first locking mechanism includes a positioning pin that passes through the seat plate and the backrest, and a handle fixed to the end of the positioning pin.

[0011] Furthermore, a tension spring is provided on the side of the handle near the seat plate, the tension spring is sleeved on the positioning pin, and the two ends of the tension spring are respectively fixed to the handle and the seat plate.

[0012] Furthermore, armrests are rotatably connected to both sides of the backrest, and the portion of the backrest where the armrests are located also has a protruding support for supporting the armrests.

[0013] Furthermore, the direction control mechanism includes a rotating rod and a control rod folded onto the rotating rod. A second locking mechanism is provided at the connection between the control rod and the rotating rod. The second locking mechanism includes a sleeve fixed to the rotating rod and a movable part rotatably connected to one side of the sleeve. The top of the movable part is fixedly connected to the bottom of the control rod. When the movable part is pried open, the control rod and the rotating rod form a certain angle.

[0014] Furthermore, the second locking mechanism also includes a detachable fastener that passes through the sleeve and the movable part. When the fastener passes through and is fixed to the sleeve and the movable part, the rotating rod and the control rod are in a fixed state.

[0015] Furthermore, the top of the control lever is provided with a direction control handle and a controller; the chassis is provided with several wheels, and the bottom of the end of the chassis where the drive motor is located is also provided with a stabilizing pulley group; the chassis is also reserved with a battery slot for accommodating the battery and a mounting slot for installing the drive motor.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This utility model adopts an integrated chassis structure, which reduces the number of parts and connection points compared with the traditional split chassis. Through the overall integrated molding, it avoids the loosening problem caused by the connection of multiple parts. When driving on bumpy roads, the chassis will not shake abnormally or be damaged due to loose parts, thereby reducing the safety hazards caused by chassis failure. It solves the problem that the chassis has relatively low stability and is prone to loosening, deformation or even damage during long-term use, thus affecting the overall performance and safety of the vehicle. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of a lightweight personal mobility vehicle according to this utility model;

[0019] Figure 2 This is the second structural schematic diagram of a lightweight personal mobility vehicle according to this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0021] Figure 4 This is the third structural schematic diagram of a lightweight personal mobility vehicle according to this utility model;

[0022] Figure 5 This is a schematic diagram of the folded state of a lightweight mobility scooter according to the present invention.

[0023] 1. Chassis; 2. Folding seat; 3. Steering control mechanism; 4. First support frame; 5. Second support frame; 6. Seat plate; 7. Backrest; 8. First connecting part; 9. Second connecting part; 10. First connecting foot; 11. Second connecting foot; 12. First locking mechanism; 13. Positioning pin; 14. Handle; 15. Armrest; 16. Support part; 17. Rotating rod; 18. Control rod; 19. Second locking mechanism; 20. Sleeve; 21. Moving part; 22. Control handle; 23. Controller; 24. Wheel body; 25. Drive motor; 26. Stabilizing pulley block; 27. Mounting slot. Detailed Implementation

[0024] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0025] like Figure 1-4 As shown, this embodiment provides a lightweight personal mobility vehicle, including a chassis 1 and a folding seat 2 movably mounted on the chassis 1. The chassis 1 is an integrally molded component, and a direction control mechanism 3 is also rotatably connected to the chassis 1.

[0026] In this embodiment, the chassis 1 is integrally molded from carbon fiber material. The integrally molded chassis 1 from carbon fiber material not only significantly improves the stability and durability of the chassis, but also greatly reduces the weight of the chassis, making the entire mobility vehicle lighter and easier to carry and operate.

[0027] Furthermore, the folding seat 2 includes a first support frame 4 and a second support frame 5 rotatably connected to the chassis 1, a seat plate 6 rotatably connected to the first support frame 4, and a backrest 7 rotatably connected to the seat plate 6, with one end of the second support frame 5 fixedly connected to the backrest 7.

[0028] The folding seat 2 provides a seating position for the user and can be folded and unfolded as needed for convenient storage and transportation. In this embodiment, by rotating the first support frame 4 and the second support frame 5, the seat plate 6 and the backrest 7 are folded and brought close to the chassis 1, thus realizing the folding state of the folding seat 2.

[0029] Furthermore, the chassis 1 is provided with a first connecting part 8 for connecting the first support frame 4 and a second connecting part 9 for connecting the second support frame 5. The first support frame 4 is symmetrically provided with a first connecting foot 10 at its lower part, and the second support frame 5 is symmetrically provided with a second connecting foot 11 at its lower part. One end of the first connecting foot 10 is pinned to the first connecting part 8, and one end of the second connecting foot 11 is pinned to the second connecting part 9.

[0030] The first connecting part 8 and the second connecting part 9 serve to provide connection points. Both are integrally mounted on the chassis 1 and are used to install the first support frame 4 and the second support frame 5 of the folding seat 2. The first support frame 4 and the second support frame 5 are flexibly connected to the chassis 1 through pin connections. Specifically, the first support frame 4 and the second support frame 5 are connected to the chassis 1 at multiple points through a plurality of first connecting feet 10 and a plurality of second connecting feet 11. The symmetrically arranged first connecting feet 10 and second connecting feet 11 provide balanced and stable support for the folding seat 2, ensuring the stability of the folding seat 2 installation.

[0031] Furthermore, the height of the horizontal plane where the second connecting part 9 is located is greater than the height of the horizontal plane where the first connecting part 8 is located, so that when the first support frame 4 and the second support frame 5 are in a folded state, they can avoid conflict with each other.

[0032] By designing a height difference, it is ensured that the first support frame 4 and the second support frame 5 will not interfere with each other in the folded state, thereby optimizing the spatial layout on the chassis 1 and making the folding seat 2 smoother during folding and unfolding.

[0033] Furthermore, one end of the seat plate 6 is pinned to the backrest 7, and a first locking mechanism 12 is provided at the connection between the seat plate 6 and the backrest 7. The first locking mechanism 12 is used to fix the folding angle between the seat plate 6 and the backrest 7.

[0034] Furthermore, the first locking mechanism 12 includes a positioning pin 13 passing through the seat plate 6 and the backrest 7, and a handle 14 fixed to the end of the positioning pin 13.

[0035] Furthermore, a tension spring is provided on the side of the handle 14 near the seat plate 6. The tension spring is sleeved on the positioning pin 13, and the two ends of the tension spring are respectively fixed to the handle 14 and the seat plate 6.

[0036] The first locking mechanism 12 is designed to fix the folding angle between the seat plate 6 and the backrest 7, ensuring the user's comfort and stability while riding. Specifically, during normal use, the handle 14 is in its natural position, and the tension spring provides tension to the handle 14. Through the tension of the tension spring, the handle 14 presses the positioning pin 13 tightly into the pin hole of the seat plate 6 and the backrest 7, thereby fixing the relative position between the seat plate 6 and the backrest 7 and ensuring the user's stability while riding. The elastic force of the tension spring ensures that the positioning pin 13 remains in close contact in the pin hole, preventing the seat plate 6 and the backrest 7 from separating due to bumps or external forces.

[0037] When unlocking is required, pull the handle 14 away from the backrest 7 to overcome the tension of the tension spring, causing the handle 14 to move the positioning pin 13 and disengage from the backrest 7. At this time, the backrest 7 and the seat plate 6 are in a flip-up state, allowing relative rotation between the seat plate 6 and the backrest 7, thus facilitating folding.

[0038] Furthermore, the backrest 7 is also provided with a positioning hole through which the positioning pin 13 of the first locking mechanism passes. When the backrest 7 and the seat plate 6 are folded together, the positioning hole on the backrest 7 is in the position corresponding to the positioning pin 13. The folding state between the backrest 7 and the seat plate 6 can be fixed by passing the positioning pin 13 through the positioning hole.

[0039] Furthermore, the positioning hole has a beveled opening on the side near the positioning pin 13, which facilitates the smooth insertion of the positioning pin 13 into the positioning hole when the backrest 7 is flipped and folded.

[0040] Furthermore, armrests 15 are rotatably connected to both sides of the backrest 7, and a support portion 16 for supporting the armrests 15 is also provided on the part of the backrest 7 where the armrests 15 are provided.

[0041] The support part 16 provides stable support for the handrail 15, ensuring that the handrail 15 will not wobble during use. It also provides support for the handrail 15. When the bottom of the handrail 15 is attached to the support part 16, the handrail 15 will not rotate further. Specifically, the top surface of the support part 16 is the surface that matches the bottom of the handrail 15. When the handrail 15 rotates to the support part 16 and is attached to it, the stability of the handrail 15 can be improved.

[0042] Furthermore, the direction control mechanism 3 includes a rotating rod 17 and a control rod 18 folded onto the rotating rod 17. A second locking mechanism 19 is provided at the connection between the control rod 18 and the rotating rod 17. The second locking mechanism 19 includes a sleeve 20 fixed to the rotating rod 17 and a movable part 21 rotatably connected to one side of the sleeve 20. The top of the movable part 21 is fixedly connected to the bottom of the control rod 18. When the movable part 21 is pried open, the control rod 18 and the rotating rod 17 form a certain angle.

[0043] Furthermore, the second locking mechanism 19 also includes a detachable fastener that passes through the sleeve 20 and the movable member 21. When the fastener passes through and is fixed to the sleeve 20 and the movable member 21, the rotating rod 17 and the control rod 18 are in a fixed state.

[0044] The second locking mechanism 19 is a key component of the steering control mechanism 3. Its main function is to fix the relative position between the control lever 18 and the rotating lever 17 during driving, ensuring the stability and reliability of steering control. In normal use, the control lever 18 is fixed to the rotating lever 17 through the second locking mechanism 19. Specifically, the bottom of the control lever 18 is fixedly connected to the top of the movable part 21, while the movable part 21 is rotatably connected to one side of the sleeve 20. The sleeve 20 is fixed to the rotating lever 17, providing a stable connection platform. Fasteners, such as bolts or clips, pass through the sleeve 20 and the movable part 21 to fix the control lever 18 and the rotating lever 17 together. The fastening force provided by the fasteners ensures that the control lever 18 remains stable in the locked state, preventing the control lever 18 from loosening due to bumps or sharp turns.

[0045] When the control lever 18 needs to be folded, the user can easily loosen the fasteners, such as by loosening the bolts or pressing the buckle, to release the fixation of the control lever 18 and the rotating lever 17. At this time, the user can pry the movable part 21 to make a certain angle between the control lever 18 and the rotating lever 17, thereby realizing the folding operation and making the mobility scooter take up less space when not in use.

[0046] Furthermore, the top of the control lever 18 is provided with a direction control handle 22 and a controller 23; the chassis 1 is provided with a plurality of wheels 24, and the bottom of the end of the chassis 1 where the drive motor 25 is located is also provided with a stabilizing pulley group 26; the chassis 1 is also provided with a battery slot for accommodating the battery and a mounting slot 27 for mounting the drive motor 25.

[0047] The top of the control lever 18 is equipped with a direction control handle 22 and a controller 23. The direction control handle 22 is used to precisely control the driving direction of the mobility scooter, ensuring that the user can easily operate the vehicle. The controller 23 integrates speed control and other necessary operating functions, making driving the mobility scooter more convenient and safer.

[0048] Several wheels 24 are mounted on the chassis 1. These wheels 24 not only provide the necessary mobility, but also ensure the stability of the vehicle under various road conditions through reasonable distribution and design. One of the wheels 24 is driven by a drive motor 25 to provide driving force.

[0049] The working process and principle of this utility model are as follows:

[0050] The chassis 1 of this utility model is integrally molded from carbon fiber material, which reduces the number of parts and connection points, and significantly improves the stability and durability of the chassis 1. A folding seat 2 is movably installed on the chassis 1, including a first support frame 4, a second support frame 5, a seat plate 6, and a backrest 7. These components are all installed on the chassis 1 by a rotating connection, so that the seat can be folded and unfolded as needed. When the user needs to use the mobility scooter, the folding seat 2 can be easily unfolded. The angle of the seat plate 6 and the backrest 7 is fixed by the first locking mechanism 12 to ensure stability when riding. When not in use, the first locking mechanism 12 can be unlocked by pulling the handle 14 to fold the seat plate 6 and the backrest 7, reducing space occupation. The direction control mechanism 3 also has a folding function. The relative position of the control lever 18 and the rotating lever 17 is fixed by the second locking mechanism 19 to ensure stability during driving. When it is necessary to fold the control lever 18, the fastener is loosened and the movable part 21 is pried to form a certain angle between the control lever 18 and the rotating lever 17 to realize the folding operation.

[0051] This invention fully utilizes the advantages of the integrated chassis 1. The integrated chassis 1 reduces the number of parts and connection points. Made of carbon fiber, the integrated chassis 1 significantly improves stability and durability, reducing safety hazards caused by loose or damaged connection points and optimizing the overall structure to better withstand various stresses during driving. The folding seat 2 utilizes a rotating connection and locking mechanism, allowing the seat to be folded and unfolded as needed. The positioning pin 13 and handle 14 in the first locking mechanism 12, along with the elastic force provided by the tension spring, ensure that the seat plate 6 and backrest 7 maintain a fixed angle during use, preventing angle changes due to bumps or external forces. The direction control mechanism 3 fixes the relative positions of the control lever 18 and the rotating lever 17 through the second locking mechanism 19, using fasteners to provide a stable connection and ensure directional control stability during driving. The direction control handle 22 and controller 23 at the top of the control lever 18 enable precise control of the vehicle's direction and speed. This invention not only achieves lightweight design but also improves overall stability and reliability, providing users with a convenient, safe, and comfortable travel experience.

[0052] The specific embodiments of the utility model have been described in detail above, but they are only examples. The utility model is not limited to the specific embodiments described above. Those skilled in the art should understand that the embodiments and descriptions above are merely illustrative of the principles of the utility model. Various changes and modifications can be made to the utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lightweight personal mobility vehicle, characterized in that: Includes a chassis (1) and a folding seat (2) movably mounted on the chassis (1). The chassis (1) is an integrally molded component, and a direction control mechanism (3) is rotatably connected to the chassis (1). The folding seat (2) includes a first support frame (4) and a second support frame (5) rotatably connected to the chassis (1), and also includes a seat plate (6) rotatably connected to the first support frame (4) and a backrest (7) rotatably connected to the seat plate (6). The direction control mechanism (3) includes a rotating rod (17) and a control rod (18) folded onto the rotating rod (17).

2. The lightweight personal mobility vehicle according to claim 1, characterized in that: One end of the second support frame (5) is fixedly connected to the backrest (7).

3. The lightweight personal mobility vehicle according to claim 1, characterized in that: The chassis (1) is provided with a first connecting part (8) for connecting the first support frame (4) and a second connecting part (9) for connecting the second support frame (5). The first support frame (4) is symmetrically provided with a first connecting foot (10) at its lower part, and the second support frame (5) is symmetrically provided with a second connecting foot (11) at its lower part. One end of the first connecting foot (10) is pinned to the first connecting part (8), and one end of the second connecting foot (11) is pinned to the second connecting part (9).

4. A lightweight personal mobility vehicle according to claim 2, characterized in that: One end of the seat plate (6) is pinned to the backrest (7). A first locking mechanism (12) is provided at the connection between the seat plate (6) and the backrest (7). The first locking mechanism (12) is used to fix the folding angle between the seat plate (6) and the backrest (7).

5. A lightweight personal mobility vehicle according to claim 4, characterized in that: The first locking mechanism (12) includes a positioning pin (13) passing through the seat plate (6) and the backrest (7), and a handle (14) fixed to the end of the positioning pin (13).

6. A lightweight personal mobility vehicle according to claim 5, characterized in that: A tension spring is provided on the side of the handle (14) near the seat plate (6). The tension spring is sleeved on the positioning pin (13), and the two ends of the tension spring are respectively fixed on the handle (14) and the seat plate (6).

7. A lightweight personal mobility vehicle according to claim 2, characterized in that: The backrest (7) is rotatably connected to the two sides of the armrest (15), and the part of the backrest (7) where the armrest (15) is provided is also provided with a support part (16) for supporting the armrest (15).

8. A lightweight personal mobility vehicle according to claim 1, characterized in that: A second locking mechanism (19) is provided at the connection between the control lever (18) and the rotating rod (17). The second locking mechanism (19) includes a sleeve (20) fixed on the rotating rod (17) and a movable part (21) rotatably connected to one side of the sleeve (20). The top of the movable part (21) is fixedly connected to the bottom of the control lever (18). When the movable part (21) is turned, the control lever (18) and the rotating rod (17) form a certain angle.

9. A lightweight personal mobility vehicle according to claim 8, characterized in that: The second locking mechanism (19) also includes a detachable fastener that passes through the sleeve (20) and the movable part (21). When the fastener passes through and is fixed to the sleeve (20) and the movable part (21), the rotating rod (17) and the control rod (18) are in a fixed state.

10. A lightweight personal mobility vehicle according to claim 8, characterized in that: The top of the control lever (18) is provided with a direction control handle (22) and a controller (23); the chassis (1) is provided with a number of wheels (24), and the bottom of the chassis (1) where the drive motor (25) is located is also provided with a stable pulley group (26); the chassis (1) is also provided with a battery slot for accommodating the battery and a mounting slot (27) for installing the drive motor (25).