A lightweight electric folding mobility scooter

Abstract

This utility model discloses an electrically folding lightweight personal mobility vehicle, belonging to the field of personal mobility tools. An n-shaped connector two and an n-shaped connector three are fixed to a reinforcing crossbar, and are movably connected to one side of the upper and lower rods of an I-shaped push frame via screws and nuts. A connecting seat is fixed to the central rod of the I-shaped push frame, and an electric push rod is connected inside the connecting seat. The rear end of the electric push rod is fixed to the reinforcing crossbar two of the rear frame. The electric push rod drives the I-shaped push frame, simultaneously causing the rear and front frames to fold inwards. Simultaneously, the L-shaped structure of the front frame is linked to the seat frame, which folds synchronously. The front wheels are steered and automatically reset via a handlebar, swing arm, and spring, allowing folding to be completed without manual adjustment, further improving ease of use. The auxiliary wheels can be folded or unfolded with the seat frame via a linkage structure. This personal mobility vehicle is easy to fold, and the folded front wheels can be stored in the rear wheel cavity, significantly reducing storage space and facilitating storage and transportation.

Description

Technical Field

[0001] This utility model relates to an electric folding lightweight personal mobility vehicle, belonging to the technical field of personal mobility tools. Background Technology

[0002] Mobility scooters are low-speed electric vehicles, also known as "lazy person's vehicles." They are transportation tools and auxiliary tools used for getting around, and can also be called four-wheeled electric mobility scooters. They are a type of transportation that has emerged in recent years, mainly targeting elderly people who travel for leisure, picking up and dropping off children, shopping, etc. However, because electric mobility scooters are inexpensive, easy to operate, and have relatively low safety risks, they are favored by many consumers.

[0003] Currently, most lightweight mobility scooters on the market have the problem of cumbersome folding operations, and their overall size after folding is relatively large, making them inconvenient for home storage and increasing the space occupation and cost during transportation. Some mobility scooters' folding structures can only achieve single folding of the frame, and the seat needs to be operated separately, which further reduces the convenience of use. Summary of the Invention

[0004] To address the above problems, the technical problem to be solved by this utility model is to provide an electrically folding lightweight personal mobility vehicle.

[0005] This utility model discloses an electric folding lightweight mobility scooter, comprising a handlebar, an operating handle, a front frame, a rear frame, a reinforcing crossbar, an I-beam pusher, an electric push rod, a front seat frame, a seat support frame, and a rear seat frame. The upper end of the handlebar is connected to the operating handle, and the lower end is connected to the front frame. The front frame is fixed to the lower front end of the front frame. The rear end of the front frame has an L-shaped structure. An N-shaped connector is fixed to the lower rear end of the front frame and connected to the front end of the rear frame via a screw and nut. A reinforcing crossbar is provided between the left and right L-shaped bars at the rear end of the front frame. The first rod and the first reinforcing crossbar are fixed with two n-shaped connectors and three n-shaped connectors, which are movably connected to one side of the upper and lower rods of the I-shaped push frame through screws and nuts. The center rod of the I-shaped push frame is fixed with a connecting seat, and an electric push rod is connected inside the connecting seat. The rear end of the electric push rod is fixed to the second reinforcing crossbar of the rear frame. The upper end of the L-shaped rod at the rear end of the front frame is connected to the front frame of the seat through screws and nuts. The front frame of the seat is fixed to the lower front end of the seat support frame. The rear frame of the seat is connected to the rear of the seat support frame. The lower part of the support rod of the rear frame is fixed to the positioning vertical rod of the rear frame through screws. Rotating bushings are fixed on both the left and right sides of the front frame. Rotating pins are fixed inside the rotating bushings. A wheel axle is fixed below the rotating pin. A front wheel is installed at one end of the wheel axle. A front rotating transmission plate is connected to the wheel axle. A swing rod is connected to one end of the front rotating transmission plate. The left and right swing rods are connected to each other and fixedly connected to the handrail. A connecting plate is connected to the lower end of the handrail. The connecting plate is connected to the two swing rods through a screw. A spring is installed on the connecting plate. One end of the spring is connected to the tail end of the connecting plate, and the other end of the spring is connected to the front frame.

[0006] Preferably, the upper and lower rods of the I-shaped push frame are connected to a vehicle body rotation transmission plate via screws and nuts. One end of the vehicle body rotation transmission plate is connected to a connecting crossbar on the inner side of the front end of the rear frame. A driving linkage is provided on the connecting crossbar, and one end of the driving linkage is connected to a transmission linkage on the head frame via screws and nuts.

[0007] Preferably, an auxiliary wheel connecting rod is integrally provided at the rear of the main rod of the rear frame, and an auxiliary wheel is installed on the auxiliary wheel connecting rod.

[0008] Preferably, a motor drive shaft is provided below the rear frame and behind the electric push rod, and rear wheels are respectively installed at both ends of the motor drive shaft. When the front frame is folded, the front wheel on the front frame is located in the cavity between the two rear wheels.

[0009] Preferably, a support column is provided at the rear end of the connection between the front frame and the head frame, and the support column is fixed to the lower front end of the front frame.

[0010] The beneficial effects of this utility model are as follows: It has a reasonable structural design, beautiful appearance, novel and unique shape, simple installation, and convenient use. The electric push rod drives the I-shaped push frame, which simultaneously drives the rear frame and the front frame to fold inward. At the same time, the L-shaped structure of the front frame is linked to the seat frame to fold in sync. The front wheel steering and automatic reset are achieved through the armrest rod, swing rod and spring. Folding can be completed without manual adjustment, which further improves the convenience of use. The auxiliary wheel can be folded or unfolded with the seat frame through the linkage structure. The folding operation of this mobility scooter is simple. The folded front wheel can be stored in the rear wheel cavity, which greatly reduces the storage space and facilitates storage and transportation. Attached image description: For ease of explanation, this utility model is described in detail below with reference to the specific embodiments and accompanying drawings.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a partial structural diagram of the installation of the vehicle head frame in this utility model; Figure 4 for Figure 3 Top view; Figure 5 for Figure 3 A bottom view; Figure 6 This is a schematic diagram of the structure below the front frame of the vehicle in this utility model; Figure 7 This is a schematic diagram of the installation structure of the front frame and the rear frame in this utility model; Figure 8 This is a structural diagram of the second specific implementation method; Figure 9 for Figure 8 Side view; Figure 10 This is a schematic diagram of the structure in the semi-folded state of the second specific embodiment; Figure 11 for Figure 10 A bottom view; Figure 12 for Figure 10 Schematic diagram of the rotated structure; Figure 13 This is a schematic diagram of the structure of this utility model in its fully folded state.

[0012] 1-Handrail; 101-Connecting piece; 102-Spring; 2-Operating handle; 3-Head frame; 301-Rotating bushing; 3011-Rotating pin; 302-Wheel axle; 303-Head rotating transmission plate; 304-Swing rod; 305-Transmission link; 4-Front frame; 401-N-shaped connector one; 402-Support column; 5-Rear frame; 501-Reinforcing crossbar two; 502-Positioning vertical bar; 503-Connecting crossbar; 50 4-Auxiliary wheel connecting rod; 6-Reinforcing crossbar one; 601-N-shaped connector two; 602-N-shaped connector three; 7-I-shaped push frame; 701-Connecting seat; 8-Electric push rod; 9-Seat front frame; 10-Seat support frame; 11-Seat rear frame; 12-Front wheel; 13-Body rotation transmission plate; 14-Drive linkage; 15-Auxiliary wheel; 16-Motor drive shaft; 17-Rear wheel; 18-Drive rod; 19-Linking plate. Detailed Implementation

[0013] Specific implementation method one: as follows Figures 1-7As shown, this specific embodiment adopts the following technical solution: It includes a handrail 1, an operating handle 2, a front frame 3, a front frame 4, a rear frame 5, a reinforcing crossbar 6, an I-shaped push frame 7, an electric push rod 8, a front seat frame 9, a seat support frame 10, and a rear seat frame 11. The upper end of the handrail 1 is connected to the operating handle 2, and the lower end of the handrail 1 is connected to the front frame 3. The front frame 3 is fixed below the front end of the front frame 4. The rear end of the front frame 4 has an L-shaped structure design. An n-shaped connector 401 is fixed below the rear end of the front frame 4 and is connected to the front end of the rear frame 5 through a screw and nut, which can realize the rear frame 5 to move inward and fold. A reinforcing crossbar is provided between the left and right L-shaped bars at the rear end of the front frame 4. 16. An n-shaped connector 2 601 and an n-shaped connector 3 602 are fixed on the reinforcing crossbar 16 and are movably connected to one side of the upper and lower bars of the I-shaped push frame 7 through screws and nuts. A connecting seat 701 is fixed to the center bar of the I-shaped push frame 7. An electric push rod 8 is connected inside the connecting seat 701. The rear end of the electric push rod 8 is fixed to the reinforcing crossbar 2 501 of the rear frame 5. The upper end of the L-shaped bar at the rear end of the front frame 4 is connected to the front frame 9 of the seat through screws and nuts. The front frame 9 of the seat is fixed to the lower front end of the seat support frame 10. The rear of the seat support frame 10 is connected to the rear frame 11 of the seat. The lower part of the support rod of the rear frame 11 is fixed to the positioning vertical bar 502 of the rear frame 5 through screws and can be folded forward. Rotating bushings 301 are fixed on both the left and right sides of the front frame 3. Rotating pins 3011 are fixed inside the rotating bushings 301. A wheel axle 302 is fixed below the rotating pins 3011. A front wheel 12 is installed on one end of the wheel axle 302. A front rotation transmission plate 303 is connected to the wheel axle 302. A swing rod 304 is connected to one end of the front rotation transmission plate 303. The two swing rods 304 are connected to each other and fixedly connected to the handrail 1. A connecting piece 101 is connected to the lower end of the handrail 1. The connecting piece 101 is connected to the two swing rods 304 through a screw. A spring 102 is provided on the connecting piece 101. One end of the spring 102 is connected to the tail end of the connecting piece 101. The other end of the spring 102 is connected to the front frame 3. When the handrail 1 is rotated, it drives the front wheel 12 to turn. When it is not rotated, the spring 102 returns to its original position, so that the front wheel 12 is straightened and returned to its original position.

[0014] The upper and lower rods of the I-shaped push frame 7 are connected to the vehicle body rotation transmission plate 13 by screws and nuts. One end of the vehicle body rotation transmission plate 13 is connected to the connecting crossbar 503 on the inner side of the front end of the rear frame 5. The connecting crossbar 503 is provided with a driving connecting rod 14. One end of the driving connecting rod 14 is connected to the transmission connecting rod 305 on the head frame 3 by screws and nuts.

[0015] An auxiliary wheel connecting rod 504 is integrally installed at the rear of the main rod of the rear frame 5, and an auxiliary wheel 15 is installed on the auxiliary wheel connecting rod 504.

[0016] A motor drive shaft 16 is located below the rear frame 5 and behind the electric push rod 8. Rear wheels 17 are installed at both ends of the motor drive shaft 16. When the front frame 4 is folded, the front wheel 12 on the front frame 4 is located in the cavity between the two rear wheels 17.

[0017] A support column 402 is provided at the rear end of the connection between the front frame 4 and the head frame 3. The support column 402 is fixed to the lower front end of the front frame 4. After the vehicle is unfolded, the support column 402 supports the transmission link 305 on the head frame 3 to prevent the head frame 3 and the front frame 4 from shaking.

[0018] Specific implementation method two: such as Figures 8-13 As shown, the difference between this specific embodiment and specific embodiment one is that the auxiliary wheel connecting rod 504 is replaced by a driving rod 18. One end of the driving rod 18 is connected to a connecting piece 19 via a screw. One end of the connecting piece 19 is connected to the lower end of the support rod of the rear seat frame 11. The driving rod 18 is connected to the support rod of the rear frame 5 via a connecting screw, and can move up and down. The other end of the driving rod 18 is equipped with an auxiliary wheel 15. When the rear seat frame 11 is folded or unfolded, the auxiliary wheel 15 is driven to fold or unfold synchronously.

[0019] The folding principle of this specific embodiment is as follows: When the electric push rod 8 is activated, the push rod of the electric push rod 8 extends forward and pushes the I-shaped push frame 7 to move upward along the reinforcing crossbar 6 of the front frame 4. The upper and lower rods of the I-shaped push frame 7 drive the front end of the rear frame 5 to rotate inward along the n-shaped connector 601 and n-shaped connector 602 below the L-shape at the rear end of the front frame 4 through the body rotation transmission plate 13. When the rear frame 5 moves inward, the driving linkage 14 on the front connecting crossbar simultaneously pushes the front frame 3, so that the front frame 3 and the front frame 4 as a whole tilt and fold inward along the connection point at the front end of the rear frame 5. When the front frame 4 tilts inward, the L-shaped rod at its rear end moves upward simultaneously, pulling the front seat frame 9 to fold. At the same time, the front seat frame 9 drives the seat support frame 10 and the rear seat frame 11 to fold forward along the connection point of the positioning vertical rod 502 of the rear frame 5. After folding, the front wheel 12 on the front frame 4 is just stored in the cavity between the left and right rear wheels 17, achieving compact storage.

[0020] The opening principle of this specific embodiment is as follows: When the electric push rod 8 is activated, its push rod retracts backward, pulling the I-shaped push frame 7 downward along the reinforcing crossbar 6 of the front frame 4, returning it to its initial position. The upper and lower rods of the I-shaped push frame 7 pull the rear frame 5 through the vehicle body rotation transmission plate 13, causing the rear frame 5 to rotate outward (away from the front frame) along the n-shaped connector 601 and n-shaped connector 602 below the L-shape at the rear end of the front frame 4, unfolding it to a horizontal state collinear with the front frame 4. When the rear frame 5 unfolds, the driving linkage 14 on its front connecting crossbar simultaneously pulls the front frame 3, causing the front frame 3 and the front frame 4 to move as a whole along the rear frame. 5. The connection point at the front end rotates downward and unfolds to a horizontal state. When the front frame 4 unfolds to a horizontal state, its rear L-shaped rod moves downward synchronously, pushing the front frame 9 of the seat to unfold. At the same time, the front frame 9 of the seat drives the seat support frame 10 and the rear frame 11 of the seat to rotate backward along the connection point of the positioning vertical rod 502 of the rear frame 5, pulling the seat to unfold. When the rear frame 11 of the seat unfolds backward, the linkage plate 19 at the lower end of its support rod pulls the driving rod 18 to move upward, so that the auxiliary wheel 15 unfolds. Through the above linkage structure, the folding and unfolding process of this mobility scooter can be completed by controlling the electric push rod. There is no need to manually operate the frame or seat, realizing one-button folding or unfolding.

[0021] This specific embodiment features a reasonable structural design, beautiful appearance, novel and unique shape, simple installation, and convenient use. An electric push rod drives the I-shaped push frame, simultaneously causing the rear and front frames to fold inwards. At the same time, the L-shaped structure of the front frame folds in tandem with the seat frame. The front wheels are steered and automatically reset via the handlebars, swing rods, and springs, eliminating the need for manual adjustment and further enhancing usability. The auxiliary wheels can be folded or unfolded along with the seat frame via a linkage structure. The folding operation of this mobility scooter is simple, and the folded front wheels can be stored in the rear wheel cavity, significantly reducing storage space and facilitating storage and transportation.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lightweight, electrically folding personal mobility vehicle, characterized in that: It includes a handrail (1), an operating handle (2), a front frame (3), a front frame (4), a rear frame (5), a reinforcing crossbar (6), an I-beam pusher (7), an electric push rod (8), a front seat frame (9), a seat support frame (10), and a rear seat frame (11). The upper end of the handrail (1) is connected to the operating handle (2), and the lower end of the handrail (1) is connected to the front frame (3). The front frame (3) is fixed below the front end of the front frame (4). The rear end of the front frame (4) has an L-shaped structure design. An n-shaped connector (401) is fixed below the rear end of the front frame (4) and is connected to the front end of the rear frame (5) through a screw and nut. A reinforcing crossbar (6) is set between the left and right L-shaped bars at the rear end of the front frame (4). The upper part is fixed with n-shaped connector 2 (601) and n-shaped connector 3 (602), and is movably connected to the upper and lower rods of the I-shaped push frame (7) by screws and nuts. The center rod of the I-shaped push frame (7) is fixed with a connecting seat (701). An electric push rod (8) is connected inside the connecting seat (701). The rear end of the electric push rod (8) is fixed to the reinforcing crossbar 2 (501) of the rear frame (5). The upper end of the L-shaped rod at the rear end of the front frame (4) is connected to the front frame (9) of the seat by screws and nuts. The front frame (9) of the seat is fixed to the lower front end of the seat support frame (10). The rear of the seat support frame (10) is connected to the rear frame (11). The lower part of the support rod of the rear frame (11) is fixed to the positioning vertical rod (502) of the rear frame (5) by screws. Rotating bushings (301) are fixed on both the left and right sides of the head frame (3). Rotating pins (3011) are fixed inside the rotating bushings (301). A wheel axle (302) is fixed below the rotating pins (3011). A front wheel (12) is installed at one end of the wheel axle (302). A head rotation transmission plate (303) is connected to the wheel axle (302). A swing rod (304) is connected to one end of the head rotation transmission plate (303). The left and right swing rods (304) are connected to each other and fixedly connected to the handrail (1). A connecting piece (101) is connected to the lower end of the handrail (1). The connecting piece (101) is connected to the two swing rods (304) through a screw. A spring (102) is provided on the connecting piece (101). One end of the spring (102) is connected to the tail end of the connecting piece (101), and the other end of the spring (102) is connected to the head frame (3).

2. The electric folding lightweight mobility scooter according to claim 1, characterized in that: The upper and lower rods of the I-shaped push frame (7) are connected to a vehicle body rotation transmission plate (13) by a screw and nut. One end of the vehicle body rotation transmission plate (13) is connected to the connecting crossbar (503) on the inner side of the front end of the rear frame (5). A driving connecting rod (14) is provided on the connecting crossbar (503). One end of the driving connecting rod (14) is connected to the transmission connecting rod (305) on the head frame (3) by a screw and nut.

3. The electric folding lightweight mobility scooter according to claim 1, characterized in that: An auxiliary wheel connecting rod (504) is integrally provided at the rear of the main rod of the rear frame (5), and an auxiliary wheel (15) is installed on the auxiliary wheel connecting rod (504).

4. The electric folding lightweight mobility scooter according to claim 1, characterized in that: A motor drive shaft (16) is provided below the rear frame (5) and behind the electric push rod (8). Rear wheels (17) are respectively installed at both ends of the motor drive shaft (16). After the front frame (4) is folded, the front wheel (12) on the front frame (4) is located in the cavity between the two rear wheels (17).

5. The electric folding lightweight mobility scooter according to claim 1, characterized in that: A support column (402) is provided at the rear end of the connection between the front frame (4) and the head frame (3), and the support column (402) is fixed below the front end of the front frame (4).

6. The electric folding lightweight mobility scooter according to claim 3, characterized in that: The auxiliary wheel connecting rod (504) is replaced by a drive rod (18). One end of the drive rod (18) is connected to a connecting piece (19) via a screw. One end of the connecting piece (19) is connected to the lower end of the support rod of the rear seat frame (11). The drive rod (18) is connected to the support rod of the rear frame (5) via a connecting screw. The other end of the drive rod (18) is equipped with an auxiliary wheel (15).

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