Folding two-wheel electric vehicle
Through the design of articulated seats and pull rods, the seat cushion frame is folded to reduce the body height, and combined with the frictional drive between the drive motor and the rear wheel, the existing two-wheeled electric vehicles are solved, and space savings and costs are achieved Reduced effect.
Patent Information
- Application Number
- CN202210603961.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-30
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2042-05-30
AI Technical Summary
The existing two-wheeled electric vehicles are not foldable, resulting in high transportation costs and difficult to carry.
A folding two-wheeled electric vehicle was designed. The seat cushion frame is hinged on the rear flat fork through articulated seats, mounting support ears and vertical rods, and connected to the main beam through pull rods to achieve folding of the seat cushion frame, reducing the body height and saving transportation. Space, the drive motor uses friction drive with the rear wheel to reduce transmission and adapt to rear wheels of different sizes.
It achieves the use stability while reducing transportation costs, convenient portability and shipping, save transportation space, adapt to rear wheels of different sizes, and improves the convenience of transportation and use.
Smart Images
Figure CN114940230B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of two-wheeled electric vehicles, in particular to a foldable two-wheeled electric vehicle. Background Art
[0002] The existing foldable two-wheeled electric vehicles are mostly two-wheeled foldable skateboards, which are easy to carry and ride on when folded. However, the two-wheeled electric vehicles are not foldable, which greatly occupies our packaging and transportation space when leaving the factory, resulting in a small one-time transportation quantity, high transportation costs, and difficulty in carrying and shipping when going out.
[0003] In summary, the applicant has proposed a foldable two-wheeled electric vehicle. Summary of the invention
[0004] In view of the problems in the prior art that two-wheeled electric vehicles are not foldable, have high transportation costs, and are difficult to carry and transport, the technical solution of the present invention proposes a foldable two-wheeled electric vehicle that solves the above problems.
[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:
[0006] A foldable two-wheeled electric vehicle comprises a frame, the frame comprises a vertical tube, a main beam and a rear horizontal fork, the main beam is inclined downward from front to rear, the vertical tube is fixedly connected to the front end head of the main beam, the rear horizontal fork is fixedly connected to the main beam, the rear horizontal forks on the left and right sides comprise an upper cross bar section, a lower cross bar section and a curved section connected to the rear ends of the upper cross bar section and the lower cross bar section, the front end head of the upper cross bar section is connected to the middle part of the main beam, the front end head of the lower cross bar section is connected to the tail of the main beam, and also comprises a seat cushion frame, the shape of the seat cushion frame is a horizontal rectangle, and the lower surface of the seat cushion frame is provided with four There are two mounting ears, two on each side, and two hinged seats are detachably provided on the upper end cross bar section of the rear flat fork on each side, and the positions of the hinged seats match the positions of the mounting ears. The seat cushion frame is hinged on the hinged seat through four vertical rods, and the top end of each vertical rod is hinged on the mounting ear, and the bottom end is hinged on the hinged seat; a mounting seat is also provided on the main beam at the connection position of the main beam and the riser, the bottom end of the pull rod is hinged on the mounting seat, and the top end is detachably connected to the seat cushion frame, and the length of the pull rod matches the distance between the seat cushion frame and the mounting seat when the vertical rod is in a vertical state.
[0007] In this way, the seat cushion frame is hinged on the rear fork, and the seat cushion frame is connected to the main beam through a pull rod. The pull rod fixes the seat cushion frame so that the seat cushion frame will not collapse. When we need to fold it, we remove the connection between the pull rod and the seat cushion frame, and the seat cushion frame will collapse around the hinge position with the rear fork and be placed above the rear wheel or above the main beam, which greatly reduces the height of the vehicle body, makes it convenient for us to transport and carry out shipment, saves transportation space, and reduces transportation costs. The seat cushion frame is hinged to the rear fork through a hinge seat, an installation lug and a vertical rod, and the front pull rod is connected to the main beam and the seat cushion frame through a mounting seat. Setting the pull rod in this way can ensure that the seat cushion frame can be at the highest point when in use, and the vertical rod is in a vertical state, which is more stable.
[0008] It is further defined that it also includes a drive motor, a rear wheel and a battery, the drive motor is fixedly connected to the lower end cross bar section of the rear fork, the drive motor and the rear wheel friction drive the rear wheel, the battery is detachably fixed to the main beam, the battery and the drive motor are electrically connected, and the rear wheel is installed on the left and right sides of the rear fork; driving the rear wheel by the friction between the drive motor and the rear wheel can save traditional transmission devices, and driving by friction has a wider range of applications than directly installing the drive motor on the rear wheel. The drive motor is directly installed on the hub of the rear wheel to directly drive the rear wheel. If the rear wheel is too large, the driving effect will be poor. Friction driving can increase torque by adjusting the friction coefficient, and can adapt well to rear wheels of various sizes.
[0009] It is further defined that a mounting plate is provided on each side of the driving motor, the mounting plate is used to install the driving motor, a motor mounting ear is provided on the lower end cross bar section of the left and right rear flat forks, a cross bar is also provided between the left and right vertical bars, the bottom of the mounting plate is connected to the motor mounting ear through a tension spring, and the top of the mounting plate is sleeved on the cross bar between the left and right vertical bars at the rear; the driving motor is fixed more stably by the motor mounting ear, tension spring and mounting plate.
[0010] It is further defined that a rear wheel mounting plate is provided inside the curved section of the rear fork on each side, and the rear wheel is fixed to the rear fork by passing the rear wheel mounting plate through the rear wheel axle.
[0011] It is further defined that it also includes a steering column and a front wheel, the steering column is connected to the vertical tube, the steering column is a two-section type, and the two sections of the steering column are connected by a folding joint; this arrangement can further fold the vehicle body and save more space.
[0012] It is further defined that a cushion box is also included, and the side view of the cushion box is T-shaped, and the cushion box is inserted into the cushion frame from top to bottom for clamping and fixing; this arrangement of the cushion box makes it more convenient for us to disassemble and fold.
[0013] It is further defined that the length of the pull rod can be adjusted through a thread; by adjusting the length of the pull rod, vertical rods of different lengths can be adapted, which is more convenient.
[0014] The beneficial effect of the present invention compared with the prior art is that the seat cushion frame is hinged by the vertical rod, so that we can fold the seat cushion frame when transporting and carrying, and fix the seat cushion frame by the pull rod when in use, so that we can ensure the use while making transportation more convenient, reducing transportation costs, and making it easier to carry and ship outside. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a simple schematic diagram of the seat cushion frame of the present invention in an unfolded state;
[0016] Figure 2 A simple schematic diagram of the seat cushion frame of the present invention in a folded state;
[0017] Figure 3 It is a simple structural diagram of the driving motor;
[0018] Figure 4 This is a simple structural diagram of a cushion box.
[0019] The corresponding markings in the figure are: 1-stair tube, 2-main beam, 3-rear fork, 4-steering column, 5-front wheel, 6-drive motor, 7-rear wheel, 8-battery, 9-folding joint, 10-seat frame, 11-mounting ear, 12-articulated seat, 13-vertical rod, 14-pull rod, 15-mounting seat, 16-rear wheel mounting plate, 17-mounting plate, 18-motor mounting ear, 19-friction wheel, 20-tension spring, 21-seat box, 22-cross bar. DETAILED DESCRIPTION
[0020] In order to enable those skilled in the art to better understand, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.
[0021] Example:
[0022] like Figure 1-Figure 4As shown, a foldable two-wheeled electric vehicle includes a frame, a steering column 4, a front wheel 5, a drive motor 6, a rear wheel 7 and a battery 8. The frame includes a vertical tube 1, a main beam 2 and a rear horizontal fork 3. The main beam 2 is a rod member that tilts downward from front to back. The vertical tube 1 is fixedly connected to the front end head of the main beam 2, and the steering column 4 is connected in the vertical tube 1. The steering column 4 is a two-section type, and the two sections of the steering column 4 are connected by a folding joint 9; the rear horizontal fork 3 on the left and right sides includes an upper cross bar section, a lower cross bar section and a curved section connected to the rear ends of the upper cross bar section and the lower cross bar section. The rear horizontal fork on each side is generally U-shaped with an open front end. The front end head of the upper cross bar section is connected to the middle part of the main beam 2, and the front end head of the lower cross bar section is connected to the tail of the main beam 2. It also includes a seat cushion frame 10. The shape of the seat cushion frame 10 is a horizontal rectangle. The lower surface of the frame 10 is provided with four mounting ears 11, two on each side. Two hinged seats 12 are detachably provided on the upper end cross bar section of the rear fork 3 on each side. The position of the hinged seat 12 matches the position of the mounting ears 11. The seat cushion frame 10 is hinged on the hinged seat 12 through four vertical rods 13. The top end of each vertical rod 13 is hinged on the mounting ear 11, and the bottom end is hinged on the hinged seat 12. It also includes a pull rod 14. A mounting seat 15 is also provided on the main beam 2 at the connection position between the main beam 2 and the riser 1. The bottom end of the pull rod 14 is hinged on the mounting seat 15, and the top end is detachably fixedly connected to the seat cushion frame 10. Usually, the top end of the pull rod 14 is fastened to the seat cushion frame by bolts. Such a detachable fixed connection method with bolts can ensure that the seat cushion frame 10 is more stable under the action of the pull rod.The length of the pull rod 14 matches the distance between the seat cushion frame 10 and the mounting seat 15 when the vertical rod 13 is in the vertical state. The pull rod is an adjustable screw with pipe fittings at both ends and an adjusting thread in the middle. The length of the adjustable screw can be adjusted by the thread. The length of the pull rod 14 can be adjusted by the adjusting thread to adapt to the installation of vertical rods 13 of different lengths, thereby adapting to the ergonomics of people of different heights and ensuring the comfort of the rider. At the same time, it can adapt to vertical rods 13 of different lengths to ensure that the vertical rod 13 is in a vertical state during riding and enhance stability; friction wheels 19 are provided at both ends of the drive motor 6, and the drive motor 6 drives the rear wheel 7 by driving the friction wheel 19, and the friction wheel 19 rubs the rear wheel 7; the battery 8 is detachably fixed on the main beam 2 The battery 8 is electrically connected to the drive motor 6. A rear wheel mounting piece 16 is provided inside the curved section of the rear fork 3 on each side. The rear wheel 7 is fixed to the rear fork 3 by passing the rear wheel axle through the rear wheel mounting piece 16; a mounting plate 17 is provided on each side of the drive motor 6, and the mounting plate 17 is used to install the drive motor 6. A motor mounting lug 18 is provided on the lower end cross bar section of the rear fork 3 on the left and right sides, and a cross bar 22 is also provided between the vertical bars 13 on the left and right sides. The bottom of the mounting plate 17 is connected to the motor mounting lug 18 through a tension spring 20, and the top of the mounting plate 17 is sleeved on the cross bar 22 between the two rear vertical bars 13 on the left and right sides; the tire size of the front wheel 5 and the rear wheel 7 is a 4.00-5 inch wide tire, the tire outer diameter is 30cm, and the tire ground contact area is 5cm.
[0023] In this way, the seat cushion frame 10 is hinged on the rear fork 3, and the seat cushion frame 10 is connected to the main beam 2 through a pull rod 14. The pull rod 14 fixes the seat cushion frame 10 so that the seat cushion frame 10 will not collapse. When we need to fold it, the connection position between the pull rod 14 and the seat cushion frame 10 is disassembled, and the seat cushion frame 10 will collapse around the hinge position with the rear fork 3 and be placed above the rear wheel 7 or above the main beam 2, which greatly reduces the height of the vehicle body and is convenient for us to transport and carry outside. The seat frame 10 is hinged to the rear fork 3 through the hinge seat 12, the mounting lug 11 and the vertical rod 13, and the front tie rod 14 is connected to the main beam 2 and the seat frame 10 through the mounting seat 15. The tie rod 14 is arranged in this way to ensure that the seat frame 10 can be at the highest position when in use. , the vertical rod 13 is in a vertical state, which is more stable; driving the rear wheel 7 by friction between the driving motor 6 and the rear wheel 7 can save the traditional transmission device, and driving by friction has a wider application range than directly installing the driving motor 6 on the rear wheel 7. The driving motor 6 is directly installed on the wheel hub of the rear wheel 7 to directly drive the rear wheel 7. If the rear wheel 7 is too large, the driving effect will be poor. The friction drive can increase the torque by adjusting the friction coefficient, which can well adapt to rear wheels 7 of various sizes; fixing the driving motor 6 by the motor mounting lug 18, the tension spring 20 and the mounting plate 17 is more stable; such an arrangement can further fold the vehicle body and save more space; setting the front wheel 5 and the rear wheel 7 to such a wide tire can improve safety and comfort, and the wide tire is not easy to tilt; such an arrangement of the cushion box 21 is more convenient for us to disassemble and fold, and the vertical rods 13 of different lengths can be adapted by adjusting the length of the pull rod 14, which is more convenient.
[0024] The beneficial effect of the present invention compared with the prior art is that the seat cushion frame is hinged by the vertical rod, so that we can fold the seat cushion frame when transporting and carrying, and fix the seat cushion frame by the pull rod when in use, so that we can ensure the use while making transportation more convenient, reducing transportation costs, and making it easier to carry and ship outside.
[0025] It should be noted that the front end and rear end in this article refer to the positions in the actual vehicle body.
[0026] The foldable two-wheeled electric vehicle provided by the present invention is described in detail above, and the description of the specific embodiments is only used to help understand the method and core idea of the present invention. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified without departing from the principle of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims
1. A foldable two-wheeled electric vehicle, comprising a frame, wherein the frame comprises a vertical tube, a main beam and a rear horizontal fork, wherein the main beam is a rod member inclined downward from front to rear, and the vertical tube is fixedly connected to the front end of the main beam, characterized in that: The rear horizontal fork is fixedly connected to the main beam, and the rear horizontal forks on the left and right sides include an upper cross bar section, a lower cross bar section and a curved section connected to the rear ends of the upper cross bar section and the lower cross bar section, the front end head of the upper cross bar section is connected to the middle part of the main beam, and the front end head of the lower cross bar section is connected to the tail of the main beam, and also includes a seat cushion frame, the shape of the seat cushion frame is a horizontal rectangle, and the lower surface of the seat cushion frame is provided with four mounting ears, two on each side, and two hinge seats are detachably provided on the upper cross bar section of the rear horizontal fork on each side, the position of the hinge seat matches the position of the mounting ears, and the seat cushion frame is hinged to the hinge seat through four vertical rods, the top end of each vertical rod is hinged to the mounting ear, and the bottom end is hinged to the hinge seat; It also includes a pull rod, and a mounting seat is provided on the main beam at the connection position between the main beam and the vertical pipe. The bottom end of the pull rod is hinged on the mounting seat, and the top end is detachably connected to the seat cushion frame. The length of the pull rod matches the distance between the seat cushion frame and the mounting seat when the vertical rod is in a vertical state. It also includes a drive motor, a rear wheel and a battery, wherein the drive motor is fixedly connected to the lower end crossbar section of the rear flat fork, the drive motor drives the rear wheel by friction with the rear wheel, the battery is detachably fixed to the main beam, the battery and the drive motor are electrically connected, and the rear wheel is installed on the rear flat fork on the left and right sides; The pull rod is an adjustable screw with pipe fittings at both ends and an adjusting thread in the middle, and the length of the adjustable screw can be adjusted through the adjusting thread; The top end of the pull rod is fastened to the cushion frame by bolts; A rear wheel mounting plate is provided inside the curved section of the rear flat fork on each side, and the rear wheel is fixed on the rear flat fork by passing the rear wheel axle through the rear wheel mounting plate.
2. The foldable two-wheeled electric vehicle according to claim 1, characterized in that: A mounting plate is provided on each side surface of the driving motor, and the mounting plate is used to install the driving motor. A motor mounting lug is provided on the lower end cross bar section of the rear flat fork on the left and right sides, and a cross bar is also provided between the vertical bars on the left and right sides. The bottom of the mounting plate is connected to the motor mounting lug through a tension spring, and the top of the mounting plate is sleeved on the cross bar between the two left and right vertical bars at the rear.
3. The foldable two-wheeled electric vehicle according to claim 1, characterized in that: It also includes a steering column and a front wheel. The steering column is inserted into the vertical tube. The steering column is in two sections, and the two sections of the steering column are connected by a folding joint.
4. The foldable two-wheeled electric vehicle according to claim 1, characterized in that: It also includes a cushion box, which is T-shaped in side view, and the cushion box is inserted into the cushion frame from top to bottom for clamping and fixing.