Rear frame damping mechanism of electric scooter

Abstract

The utility model relates to a rear frame damping mechanism of an electric scooter, which comprises a frame, a motor is mounted on the frame, damping wheels rotating through bearings are respectively mounted on two sides of the frame, the motor is used for driving the two damping wheels to rotate, a damping support frame is detachably fixed on the frame, and the damping support frame is used for supporting the damping wheels. A rear frame connector used for being connected with the electric scooter is fixed to the damping supporting frame, a spring damper is connected to the damping supporting frame, and one end of the spring damper is connected with the frame. Vibration generated by bumpy road surfaces in the running process of a vehicle body can be reduced, so that the riding comfort is improved, a battery and the vehicle are protected, and the driving experience and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric scooters, in particular to a rear frame shock absorbing mechanism of an electric scooter. Background Art

[0002] Electric scooters, also known as electric wheelchairs, are devices that assist people with mobility impairments and disabilities to move around. They are essential means of transportation for people with disabilities and have a wide range of applications, including in hospitals and homes. Therefore, their electrical performance, safety performance, and electromagnetic compatibility are very important.

[0003] In the existing technology, such as the Chinese invention patent application with publication number CN113069284A, an electric wheelchair is disclosed, including a wheelchair frame, a linkage mechanism, a first drive motor, a second drive motor, a micro air pump and a ventilation tube. The upper side of the wheelchair frame is tightly fitted with a wheelchair cushion, and the middle part of the lower side of the wheelchair cushion is movably connected with a linkage push rod, a connecting block is installed on the outer side of the bottom end of the linkage push rod, and an adjusting rod is connected through the middle part of the connecting block, a linkage mechanism is installed on the left side of the adjusting rod, and the first drive motor is fixed to the left side of the linkage mechanism.

[0004] The above-mentioned prior art solution has the following drawbacks: Although the electric wheelchair can electrically drive the wheelchair seat and backrest shell to lift, assisting the user in sitting down and getting up, reducing the difficulty of the user sitting down and getting up on their own due to personal reasons, and can effectively support the hands and facilitate force application, and the shape of the backrest shell can be adjusted according to the needs of different users, which is highly flexible and convenient for replacing different leg pads, it, like the rear frame of most electric wheelchairs on the market, does not have a shock-absorbing mechanism. The vibration generated by bumpy roads during driving is transmitted to the driver, resulting in extremely poor comfort, reduced vehicle stability, and a potential safety hazard of vehicle tipping over. In addition, the vehicle battery pack is easily affected by vibration, which greatly shortens the battery life. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rear frame shock-absorbing mechanism for an electric scooter, which can reduce the vibration of the vehicle body caused by road bumps during driving, thereby improving riding comfort, protecting the battery and vehicle, and enhancing driving experience and safety.

[0006] The above-mentioned utility model object of the present invention is achieved through the following technical solutions:

[0007] A rear frame shock-absorbing mechanism for an electric scooter comprises a frame, a motor mounted on the frame, shock-absorbing wheels mounted on both sides of the frame and rotating through bearings, the motor being used to drive the two shock-absorbing wheels to rotate, a shock-absorbing support frame being detachably fixed to the frame, a joint for connecting the rear frame of the electric scooter being fixed to the shock-absorbing support frame, a spring shock absorber being connected to the shock-absorbing support frame, and one end of the spring shock absorber being connected to the frame.

[0008] As a further technical solution of the present invention: the frame includes two support tubes, a straight tube, two frame bent tubes, a connecting tube and a U-shaped tube, the two support tubes are respectively mounted on the bearings on the inner side of the shock-absorbing wheel, the two ends of the straight tube are respectively connected to the same end of the two support tubes, the straight tubes are arranged horizontally, and the two ends of the U-shaped tube are respectively connected to the other ends of the two support tubes away from the straight tubes;

[0009] One end of the two frame bent pipes is respectively connected to the top of one end of the support pipe close to the straight pipe, and the other end is respectively connected to the U-shaped pipe. Both ends of the connecting pipe are respectively fixedly connected to the two frame bent pipes.

[0010] As a further technical solution of the present invention: the shock-absorbing support frame can be detachably fixed on the straight tube, the top of the shock-absorbing support frame is connected to one end of the spring shock absorber, and the end of the spring shock absorber away from the shock-absorbing support frame is connected to the center position of the U-shaped tube.

[0011] As a further technical solution of the present invention: the height of the spring shock absorber close to one end of the U-shaped tube is lower than the height of the spring shock absorber close to one end of the shock absorbing support frame.

[0012] As a further technical solution of the present invention: mounting ears are fixedly connected to the two frame bends, and a circular hole and a waist-shaped hole are opened on the mounting ears.

[0013] As a further technical solution of the present invention: both support tubes are connected with anti-reverse shock-absorbing wheels.

[0014] As a further technical solution of the present invention: the anti-reverse shock-absorbing wheel is rotatably connected to the inner side of the support tube close to one end of the U-shaped tube.

[0015] In summary, the present invention has at least one of the following beneficial technical effects:

[0016] The utility model discloses a rear frame shock-absorbing mechanism for an electric scooter, which comprises a shock-absorbing support frame, a spring shock absorber, a frame bend pipe, a U-shaped pipe, an anti-reverse shock-absorbing wheel and a shock-absorbing wheel, and can, through the active cooperation of these components, greatly reduce the vibration of the vehicle body caused by road bumps during driving, thereby improving riding comfort and safety. This is particularly important for users who ride electric scooters for a long time, and has great economic promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model.

[0018] Figure 2 It is a schematic diagram of the overall structure of the back of the utility model.

[0019] Figure 3 The utility model shows the overall structure of the electric scooter.

[0020] Figure numerals: 1. Frame; 11. Support tube; 12. Straight tube; 13. Frame bend tube; 14. Connecting tube; 15. U-shaped tube; 2. Motor; 3. Shock-absorbing wheel; 4. Shock-absorbing support frame; 5. Rear frame joint; 6. Spring shock absorber; 7. Mounting ear; 71. Circular hole; 72. Waist-shaped hole; 8. Anti-reverse shock-absorbing wheel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0024] Example 1:

[0025] Reference Figure 1-Figure 3 , which is a rear frame shock-absorbing mechanism of an electric scooter disclosed in the present utility model, includes a frame 1, a motor 2 is installed on the frame 1, and shock-absorbing wheels 3 that rotate through bearings are respectively installed on both sides of the frame 1. In this embodiment, the shock-absorbing wheels 3 are PU solid wheels, and the motor 2 is used to drive the two shock-absorbing wheels 3 to rotate. A shock-absorbing support frame 4 is detachably fixed to the frame 1, and a rear frame joint 5 for connecting the electric scooter is fixed on the shock-absorbing support frame 4. A spring shock absorber 6 is connected to the shock-absorbing support frame 4, and one end of the spring shock absorber 6 is connected to the frame 1. The spring shock absorber 6 is a vibration control device that is sensitive to displacement and is mainly used to suppress the shock when the spring rebounds after shock absorption and the impact from the road surface. Among them, the shock-absorbing support frame 4 is detachably fixed to the overall frame of the electric scooter through the rear frame joint 5, realizing the function of quick disassembly of the rear frame shock-absorbing mechanism.

[0026] Reference Figure 1 The frame 1 includes two support tubes 11, a straight tube 12, two frame bent tubes 13, a connecting tube 14 and a U-shaped tube 15. The two support tubes 11 are respectively installed on the bearings on the inner side of the shock-absorbing wheel 3. The two ends of the straight tube 12 are respectively connected to the same end of the two support tubes 11. The straight tube 12 is arranged horizontally. The two ends of the U-shaped tube 15 are respectively connected to the other end of the two support tubes 11 away from the straight tube 12; one end of the two frame bent tubes 13 is respectively connected to the top of one end of the support tube 11 close to the straight tube 12, and the other end is respectively connected to the U-shaped tube 15. The two ends of the connecting tube 14 are respectively fixedly connected to the two frame bent tubes 13.

[0027] In this embodiment, the two support tubes 11, the straight tube 12, the two frame bent tubes 13, the connecting tube 14 and the U-shaped tube 15 are all made of aluminum alloy, which not only increases the structural strength of the entire rear frame 1 and improves its service life, but also meets the requirements of lightweighting the entire vehicle.

[0028] The shock-absorbing support frame 4 is detachably fixed to the straight tube 12. The top of the shock-absorbing support frame 4 is connected to one end of the spring shock absorber 6. The end of the spring shock absorber 6 away from the shock-absorbing support frame 4 is connected to the center of the U-shaped tube 15. The height of the spring shock absorber 6 near the end of the U-shaped tube 15 is lower than the height of the spring shock absorber 6 near the end of the shock-absorbing support frame 4.

[0029] Reference Figure 1 The two frame elbows 13 are fixedly connected with mounting ears 7, and the mounting ears 7 are provided with a circular hole 71 and a waist-shaped hole 72. This arrangement makes it easy to fix the rear frame 1 on the vehicle body and improves the convenience of disassembly. Figure 2 , anti-falling shock absorbing wheels 8 are connected to both support tubes 11, and the anti-falling shock absorbing wheels 8 are rotatably connected to the inner side of the support tubes 11 near one end of the U-shaped tube 15. In this embodiment, the anti-falling shock absorbing wheels 8 have a certain protective function. They are made of rubber material and can achieve both shock absorption and anti-falling functions.

[0030] When the electric scooter is in motion, vibrations caused by road bumps are transmitted to the rear frame 1 , and the frame elbow 13 on the rear frame 1 absorbs a portion of the vibration energy, while the remaining vibration energy is transmitted to the spring shock absorber 6 for further shock absorption.

[0031] The utility model has the following features:

[0032] 1. Improve comfort: Adding spring shock absorber 6 can reduce the vibration of the vehicle body caused by road bumps during driving, thereby improving riding comfort, which is especially important for users who ride the electric scooter for a long time.

[0033] 2. Protecting the battery and vehicle: For electric scooters, adding a spring shock absorber 6 can also protect the battery pack from vibration, extending the battery life and improving performance stability. In addition, it can protect the vehicle's suspension system, chassis, and other components, reducing the impact on the vehicle during driving.

[0034] 3. Improve safety: A stable vehicle body can reduce vehicle roll, lower vehicle resistance, improve vehicle driving efficiency, and further save energy and reduce emissions. At the same time, a stable vehicle body can also improve vehicle handling and safety, reducing the possibility of accidents.

[0035] 4. Extend tire life: Shock-absorbing tires can reduce tire wear and thus extend tire life. This not only saves the cost of replacing tires, but also reduces the safety risks caused by tire wear.

[0036] 5. Improve driving experience: By absorbing and dispersing the vibrations caused by the road, the shock absorption system can enable the driver to feel better control and stability during driving, thereby improving the driving experience.

[0037] The implementation principle of the present utility model is as follows: the present utility model discloses a rear frame shock-absorbing mechanism of an electric scooter, which is equipped with a shock-absorbing support frame 4, a spring shock absorber 6, a frame bent pipe 13, a U-shaped pipe 15, an anti-reverse shock-absorbing wheel 8 and a shock-absorbing wheel 3 on the rear frame 1. Through the active coordination of these components, the vibration of the vehicle body caused by road bumps during driving can be greatly reduced, thereby improving riding comfort and safety. This is especially important for users who ride electric scooters for a long time and has great economic promotion value.

[0038] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A rear frame shock-absorbing mechanism for an electric scooter, comprising a frame (1), a motor (2) mounted on the frame (1), shock-absorbing wheels (3) rotating through bearings mounted on both sides of the frame (1), the motor (2) being used to drive the two shock-absorbing wheels (3) to rotate, and characterized in that: A shock-absorbing support frame (4) is detachably fixed to the vehicle frame (1); a rear frame connector (5) for connecting to the electric scooter is fixed to the shock-absorbing support frame (4); a spring shock absorber (6) is connected to the shock-absorbing support frame (4); and one end of the spring shock absorber (6) is connected to the vehicle frame (1).

2. The rear frame shock absorbing mechanism of the electric scooter according to claim 1, characterized in that: The frame (1) comprises two support tubes (11), a straight tube (12), two frame bent tubes (13), a connecting tube (14) and a U-shaped tube (15); the two support tubes (11) are respectively mounted on bearings on the inner side of the shock-absorbing wheel (3); the two ends of the straight tube (12) are respectively connected to the same end of the two support tubes (11); the straight tube (12) is arranged horizontally; and the two ends of the U-shaped tube (15) are respectively connected to the other ends of the two support tubes (11) away from the straight tube (12); One end of the two frame bent pipes (13) is respectively connected to the top of one end of the support pipe (11) close to the straight pipe (12), and the other end is respectively connected to the U-shaped pipe (15). Both ends of the connecting pipe (14) are respectively fixedly connected to the two frame bent pipes (13).

3. The rear frame shock absorbing mechanism of the electric scooter according to claim 2, characterized in that: The shock-absorbing support frame (4) is detachably fixed to the straight tube (12); the top of the shock-absorbing support frame (4) is connected to one end of the spring shock absorber (6); and the end of the spring shock absorber (6) away from the shock-absorbing support frame (4) is connected to the center position of the U-shaped tube (15).

4. The rear frame shock absorbing mechanism of the electric scooter according to claim 3, characterized in that: The height of the spring shock absorber (6) close to one end of the U-shaped tube (15) is lower than the height of the spring shock absorber (6) close to one end of the shock absorbing support frame (4).

5. The rear frame shock absorbing mechanism of the electric scooter according to claim 2, characterized in that: The two frame bends (13) are both fixedly connected with mounting ears (7), and the mounting ears (7) are provided with a circular hole (71) and a waist-shaped hole (72).

6. The rear frame shock absorbing mechanism of the electric scooter according to claim 2, characterized in that: The two support tubes (11) are both connected with anti-reverse shock-absorbing wheels (8).

7. The rear frame shock absorbing mechanism of the electric scooter according to claim 6, characterized in that: The anti-reverse shock-absorbing wheel (8) is rotatably connected to the inner side of the support tube (11) close to one end of the U-shaped tube (15).

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