Scooter frame and electric scooter
By adopting a mounting bracket design in the electric scooter, the balance and stability issues caused by the increased width of the pedals are resolved, resulting in higher structural strength and a better user experience, while protecting the battery and wiring harness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BAITUO PRECISION MASCH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-12
AI Technical Summary
Increasing the width of the pedals in existing electric scooter structures leads to a decrease in balance and stability.
The design incorporates a mounting bracket, which includes two opposing support sections and a mounting section connecting the support sections. The support sections are spaced apart along the width of the pedal, and mounting shaft holes are provided in the mounting section for mounting the handlebar assembly, thereby enhancing the connection stability and structural strength between the pedal and the handlebar assembly.
While increasing the width of the pedal, good balance and stability are maintained, improving the user experience, reducing the risk of breakage, and protecting the battery module and wiring harness.
Smart Images

Figure CN224225213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scooter technology, and in particular to a scooter frame and an electric scooter. Background Technology
[0002] Electric scooters are transportation and recreational tools based on traditional human-powered scooters, with the addition of electric components. Their lightweight, convenient, and portable nature has made them popular with consumers. Currently, most electric scooters on the market have a structure where a tilting link is welded to the front of the pedal, and a head tube is welded to the other end of the tilting link. The upright is then rotated and mounted on the head tube to support the front wheel and enable steering. However, this structure limits the width of the pedal; widening the pedal would reduce balance and stability. Utility Model Content
[0003] The main purpose of this invention is to propose a scooter frame that increases the width of the pedals while ensuring stability.
[0004] To achieve the above objectives, the scooter frame proposed in this utility model includes:
[0005] A pedal, the rear end of which is provided with a mounting space for mounting the rear wheel;
[0006] The mounting bracket includes two opposing support portions and a mounting portion connected between the ends of the two support portions. The mounting portion has a mounting shaft hole. One end of each support portion, away from the mounting portion, is connected to the front end of the pedal. The two support portions are spaced apart along the width direction of the pedal.
[0007] The outer casing covers the mounting bracket and extends to the front end of the pedal.
[0008] Optionally, the pedal includes a panel and two fixing plates integrally formed on the back of the panel. The two fixing plates extend along the length of the panel and are respectively disposed on opposite sides of the panel. Each support portion is correspondingly connected to the inner side of one of the fixing plates.
[0009] Optionally, the pedal further includes two limiting plates integrally formed on the back of the panel. Both limiting plates extend along the length of the panel and are spaced apart between the two fixing plates, forming a battery mounting cavity between the two limiting plates.
[0010] Optionally, the installation space is located between the two limiting plates, and the limiting plates are provided with an installation structure corresponding to the position of the installation space.
[0011] Optionally, the scooter frame further includes a fixed bracket located at the front end of the pedals and connected to the two pedals. The fixed bracket is connected between the two support portions, and the outer shell has a shielding portion that covers the fixed bracket.
[0012] Optionally, the fixed bracket includes a first connecting plate and two second connecting plates vertically connected to the first connecting plate. Each second connecting plate is connected to the side of one of the limiting plates opposite to the other limiting plate, and the first connecting plate is connected between the two supporting parts.
[0013] Optionally, the fixing bracket is provided with multiple connecting parts, and the outer shell is connected to the connecting parts.
[0014] Optionally, the fixing plate is provided with an avoidance notch, and the scooter frame also includes a foot support mechanism. The foot support mechanism includes a mounting base and a support rod. The mounting base is installed between the fixing plate and the limiting plate. The support rod is hinged to the mounting base and has a retracted state and a ground-supporting state. In the retracted state, the end of the support rod away from the mounting base extends out from the avoidance notch.
[0015] Optionally, a wiring space is formed between the mounting bracket and the housing. The mounting bracket has a first wiring hole near the pedal, which communicates with the wiring space. The housing has a second wiring hole away from the pedal, which communicates with the wiring space.
[0016] This utility model also proposes an electric scooter, including a handlebar assembly, a front wheel, a rear wheel, and a scooter frame as described above. The handlebar assembly is rotatably mounted in the mounting shaft hole, the front wheel is mounted in the handlebar assembly, and the rear wheel is mounted in the mounting space.
[0017] The scooter frame of this utility model includes a pedal, a mounting bracket, and a shell. The mounting bracket includes two opposing support parts and a mounting part connecting the ends of the two support parts. By providing mounting shaft holes for mounting the handlebar assembly in the mounting part, the end of the support part away from the mounting part is connected to the front end of the pedal, so that the two support parts are spaced apart along the width direction of the pedal. Compared with the structure of a single link connecting the handlebar assembly and the pedal, the mounting bracket and the pedal have multiple support points spaced apart along the width direction of the pedal. When the pedal width is increased, the pedal can still maintain good balance, avoiding the situation where the riding stability decreases when the pedal width is increased, thus improving the user experience. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the scooter frame of this utility model;
[0020] Figure 2 for Figure 1 Exploded view of a scooter frame;
[0021] Figure 3 for Figure 2 Schematic diagram of the mounting bracket and fixing support;
[0022] Figure 4 for Figure 2 A structural diagram of the middle pedal from another angle;
[0023] Figure 5 for Figure 1 A schematic diagram of the middle support mechanism when switching to the ground support state;
[0024] Figure 6 This is a structural schematic diagram of an embodiment of the electric scooter of this utility model;
[0025] Figure 7 for Figure 6 A structural diagram of an electric scooter from another angle.
[0026] Explanation of icon numbers:
[0027] 10. Pedal; 11. Panel; 111. Mounting space; 12. Fixing plate; 121. Clearance notch; 13. Limiting plate; 131. Mounting structure; 14. Battery mounting cavity; 20. Mounting bracket; 21. Mounting part; 211. Mounting shaft hole; 22. Support part; 221. First wire through hole; 30. Outer shell; 31. Covering part; 32. Second wire through hole; 40. Fixing bracket; 41. First connecting plate; 42. Second connecting plate; 43. Connecting part; 50. Sleeve; 60. Foot support mechanism; 61. Mounting seat; 62. Support rod; 80. Handlebar assembly; 81. Vertical bar; 82. Handlebar; 83. Front fork; 91. Front wheel; 92. Rear wheel.
[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0032] This utility model proposes a scooter frame.
[0033] In the embodiments of this utility model, such as Figures 1 to 7 As shown, the scooter frame includes a footboard 10, a mounting bracket 20, and a housing 30. The rear end of the footboard 10 is provided with a mounting space 111 for mounting the rear wheel 92. The mounting bracket 20 includes two opposing support portions 22 and a mounting portion 21 connected between the ends of the two support portions 22. The mounting portion 21 is provided with a mounting shaft hole 211. The end of the support portion 22 away from the mounting portion 21 is connected to the front end of the footboard 10. The two support portions 22 are spaced apart along the width direction of the footboard 10. The housing 30 covers the mounting bracket 20 and extends to the front end of the footboard 10.
[0034] Specifically, the mounting hole 211 is used to mount the handlebar assembly 80, which includes a vertical bar 81, a handlebar 82 located at the upper end of the vertical bar 81, and a front fork 83 located at the lower end of the vertical bar 81. One of the vertical bar 81 and the front fork 83 is rotatably mounted in the mounting hole 211; that is, the mounting bracket 20 is a connecting part 43 between the handlebar assembly 80 and the pedal 10.
[0035] Compared to a structure where a single link connects the handlebar assembly 80 and the pedal 10, the mounting bracket 20 has multiple connection points with the pedal 10 in the width direction, resulting in a larger connection span. This enhances both the structural strength of the mounting bracket 20 and the reliability of the connection between it and the pedal 10. It effectively distributes the stress between the mounting bracket 20 and the pedal 10, preventing stress concentration at a single point. This leads to higher structural strength of the scooter frame, reduces the risk of breakage between the mounting bracket 20 and the pedal 10, and improves the durability of the scooter frame. The outer shell 30 can be made of plastic, metal, or composite materials.
[0036] The scooter frame of this utility model includes a footboard 10, a mounting bracket 20, and a housing 30. The mounting bracket 20 includes two opposing support portions 22 and a mounting portion 21 connecting the ends of the two support portions 22. By providing mounting shaft holes 211 for mounting handlebar assembly 80 in the mounting portion 21, the end of the support portion 22 away from the mounting portion 21 is connected to the front end of the footboard 10, so that the two support portions 22 are spaced apart along the width direction of the footboard 10. Compared with the structure of a single link connecting the handlebar assembly 80 and the footboard 10, the mounting bracket 20 has multiple support points spaced apart along the width direction of the footboard 10. When the width of the footboard 10 is increased, the footboard 10 can still maintain good balance, avoiding the situation where the riding stability is reduced when the width of the footboard 10 is increased, thus improving the user experience.
[0037] In some embodiments, the pedal 10 includes a panel 11 and two fixing plates 12 integrally formed on the back of the panel 11. Both fixing plates 12 extend along the length of the panel 11 and are disposed on opposite sides of the panel 11. Each support portion 22 is correspondingly connected to the inner side of one fixing plate 12. Specifically, the fixing plates 12 are approximately perpendicular to the panel 11. The fixing plates 12 not only strengthen the structural strength of the pedal 10 and reduce the risk of deformation, but also provide a larger contact area between the support portion 22 and the fixing plate 12, thus improving the connection stability between the mounting bracket 20 and the pedal 10. The support portion 22 can be welded to the fixing plate 12 or locked to the fixing plate 12 using threaded fasteners.
[0038] In some embodiments, the pedal 10 further includes two limiting plates 13 integrally formed on the back of the panel 11. Both limiting plates 13 extend along the length of the panel 11 and are spaced apart between two fixing plates 12, forming a battery mounting cavity 14 between the two limiting plates 13. Specifically, the limiting plates 13 are approximately perpendicular to the panel 11 and spaced apart from the fixing plates 12. The distance between the two limiting plates 13 is greater than the distance between the limiting plates 13 and the fixing plates 12, ensuring a larger space in the battery mounting cavity 14. The reinforcing plates further strengthen the structural strength of the pedal 10, reducing the risk of deformation. Furthermore, when the fixing plates 12 deform due to impact, the spacing between the fixing plates 12 and the limiting plates 13 provides a certain clearance space, reducing the impact on the limiting plates 13 and the battery module installed in the battery mounting cavity 14, thus better protecting the battery module.
[0039] In some embodiments, the mounting space 111 is located between two limiting plates 13, and the limiting plates 13 are provided with mounting structures 131 corresponding to the mounting space 111. Specifically, the mounting structure 131 is provided with a pivot hole, and the pivot of the rear wheel 92 is mounted in the pivot hole. This allows full utilization of the limiting plates 13 to mount the rear wheel 92, making the axis of the rear wheel 92 lower than the panel 11, thus avoiding the rear wheel 92 having an excessively large diameter. Of course, in other embodiments, the mounting structure 131 for mounting the rear wheel 92 can also be provided on the panel 11.
[0040] Optionally, the scooter frame also includes a sleeve 50, which is mounted in the mounting shaft hole 211 and welded to the mounting bracket 20, with one of the vertical rod 81 and the fork 83 rotatably mounted in the sleeve 50.
[0041] In some embodiments, the scooter frame further includes a fixing bracket 40 located at the front end of the pedals 10 and connected to both pedals 10. The fixing bracket 40 is connected between two support portions 22. The fixing bracket 40 increases the connection points between the mounting frame 20 and the pedals 10, improving the connection stability between the mounting frame 20 and the pedals 10. It also strengthens the structural strength of the mounting frame 20, enhancing the stability of the scooter frame. Optionally, the outer shell 30 has a shielding portion 31 that covers the fixing bracket 40. This conceals the fixing bracket 40, protects it, avoids the need for external designs and protective structures on the fixing bracket 40, and simplifies its structure.
[0042] In some embodiments, the fixing bracket 40 includes a first connecting plate 41 and two second connecting plates 42 perpendicularly connected to the first connecting plate 41. Each second connecting plate 42 is connected to a side of a limiting plate 13 opposite to the other limiting plate 13. The first connecting plate 41 is connected between two support portions 22. Specifically, the second connecting plates 42 are approximately parallel to the limiting plates 13, and the thickness direction of the first connecting plate 41 is approximately parallel to the length direction of the pedal 10. This configuration strengthens the scooter frame structure with the fixing bracket 40 while also protecting the battery module in the battery mounting cavity 14 with the first connecting plate 41, reducing the risk of damage to the front end of the battery module from impacts by foreign objects during riding. The first connecting plate 41 can be welded or fixed to the support portion 22 with threaded fasteners, and the second connecting plate 42 can be welded or fixed to the limiting plate 13 with threaded fasteners.
[0043] In some embodiments, the fixing bracket 40 is provided with multiple connecting portions 43, and the housing 30 is connected to the connecting portions 43. This increases the fixing points of the housing 30, improving the installation stability of the housing 30. When the housing 30 is made of a high-strength material such as metal, the fixing bracket 40 can be further fixed by the housing 30, further improving the connection stability between the mounting bracket 20 and the pedal 10. Optionally, the connecting portions 43 are provided with screw holes, and the housing 30 is provided with through holes corresponding to the screw holes, so as to fix the housing 30 to the connecting portions 43 by screws.
[0044] Optionally, the support portion 22 extends gradually upwards in a direction away from the pedal 10. This arrangement allows the arched portion to be further away from the pedal 10, ensuring ample space below the arched portion for mounting the front wheel 91 and front fork 83. It also reduces interference of the support portion 22 with the front wheel 91, which is beneficial for increasing the steering angle of the front wheel 91. Optionally, the support portion 22 can be plate-shaped or tubular (square or flat).
[0045] In some embodiments, the fixing plate 12 is provided with a clearance notch 121, and the scooter frame also includes a foot support mechanism 60. The foot support mechanism 60 includes a mounting base 61 and a support rod 62. The mounting base 61 is installed between the fixing plate 12 and the limiting plate 13. The support rod 62 is hinged to the mounting base 61 and has a retracted state and a ground-supporting state. In the retracted state, the end of the support rod 62 away from the mounting base 61 extends out from the clearance notch 121. Specifically, the end of the support rod 62 away from the mounting base 61 is bent. In the retracted state, the main body of the support rod 62 is located between the fixing plate 12 and the limiting plate 13, and only the end of the support rod 62 away from the mounting base 61 extends out from the clearance notch 121, so that the user can unfold the foot support mechanism 60 to the ground-supporting state. This design allows the space between the fixed plate 12 and the limiting plate 13 to accommodate the foot support mechanism 60, improving the space utilization under the pedal 10. Simultaneously, the fixed plate 12 effectively protects the foot support mechanism 60 when folded, reducing the risk of damage during driving. Optionally, the clearance notch 121 is located at the rear end of the pedal 10.
[0046] In some embodiments, a wiring space is formed between the mounting bracket 20 and the housing 30. The mounting bracket 20 has a first cable pass 221 near the pedal 10, which communicates with the wiring space. The housing 30 has a second cable pass 32 away from the pedal 10, which also communicates with the wiring space. That is, the cable harness extending from the pedal 10 enters the wiring space through the first cable pass 221 and exits through the second cable pass 32 to reach the handlebar assembly 80. This utilizes the space between the mounting bracket 20 and the housing 30 for cable routing, reducing cable exposure and providing better protection for the cable harness.
[0047] This utility model also proposes an electric scooter, which includes a handlebar assembly 80, a front wheel 91, a rear wheel 92, and a scooter frame. The specific structure of the scooter frame is as described in the above embodiments. Since this electric scooter adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The handlebar assembly 80 is rotatably mounted in the mounting shaft hole 211, the front wheel 91 is mounted in the handlebar assembly 80, and the rear wheel 92 is mounted in the mounting space 111.
[0048] The handlebar assembly 80 includes a vertical stem 81, a handlebar 82 located at the upper end of the vertical stem 81, and a front fork 83 located at the lower end of the vertical stem 81. One of the vertical stem 81 and the front fork 83 is rotatably mounted in a mounting hole 211. The front fork 83 is at least partially located below the mounting portion 21, and the front wheel 91 is located below the mounting portion 21 and between two support portions 22. The distance between the two support portions 22 is greater than the width of the front fork 83 to ensure that the front wheel 91 can rotate normally between the two support portions 22 for steering.
[0049] The electric scooter also includes a rear wheel 92 and a braking device. The rear wheel 92 is installed at the rear end of the pedal 10. The rear wheel 92 and the braking device can refer to the prior art, and will not be described in detail here.
[0050] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A scooter frame, characterized in that, include: A pedal, the rear end of which is provided with a mounting space for mounting the rear wheel; The mounting bracket includes two opposing support portions and a mounting portion connected between the ends of the two support portions. The mounting portion has a mounting shaft hole. One end of each support portion, away from the mounting portion, is connected to the front end of the pedal. The two support portions are spaced apart along the width direction of the pedal. The outer casing covers the mounting bracket and extends to the front end of the pedal.
2. The scooter frame as described in claim 1, characterized in that, The pedal includes a panel and two fixing plates integrally formed on the back of the panel. The two fixing plates extend along the length of the panel and are respectively disposed on opposite sides of the panel. Each support part is correspondingly connected to the inner side of one of the fixing plates.
3. The scooter frame as described in claim 2, characterized in that, The pedal also includes two limiting plates integrally formed on the back of the panel. Both limiting plates extend along the length of the panel and are spaced apart between the two fixing plates, forming a battery mounting cavity between the two limiting plates.
4. The scooter frame as described in claim 3, characterized in that, The installation space is located between the two limiting plates, and the limiting plates are provided with an installation structure corresponding to the position of the installation space.
5. The scooter frame as described in claim 3, characterized in that, The scooter frame also includes a fixed bracket located at the front end of the pedals and connected to the two pedals. The fixed bracket is connected between the two support portions. The outer shell has a shielding portion that covers the fixed bracket.
6. The scooter frame as described in claim 5, characterized in that, The fixed bracket includes a first connecting plate and two second connecting plates perpendicularly connected to the first connecting plate. Each second connecting plate is connected to the side of one of the limiting plates opposite to the other limiting plate. The first connecting plate is connected between the two supporting parts.
7. The scooter frame as described in claim 6, characterized in that, The fixed bracket is provided with multiple connecting parts, and the outer shell is connected to the connecting parts.
8. The scooter frame as described in claim 3, characterized in that, The fixed plate has an avoidance notch, and the scooter frame also includes a foot support mechanism. The foot support mechanism includes a mounting base and a support rod. The mounting base is installed between the fixed plate and the limiting plate. The support rod is hinged to the mounting base and has a retracted state and a ground-supporting state. In the retracted state, the end of the support rod away from the mounting base extends out from the avoidance notch.
9. The scooter frame as described in claim 1, characterized in that, A wiring space is formed between the mounting bracket and the outer casing. A first wiring hole is provided on the mounting bracket near the pedal, and the first wiring hole communicates with the wiring space. A second wiring hole is provided on the outer casing away from the pedal, and the second wiring hole communicates with the wiring space.
10. An electric scooter, characterized in that, The scooter includes a handlebar assembly, a front wheel, a rear wheel, and a scooter frame as described in any one of claims 1 to 9, wherein the handlebar assembly is rotatably mounted in the mounting shaft hole, the front wheel is mounted in the handlebar assembly, and the rear wheel is mounted in the mounting space.