A sturdy scooter frame and scooter with side cable routing
The scooter frame, welded from steel structural profiles, solves the problems of unstable scooter frame structure and complex wiring, achieving a high-strength, low-cost, and safe scooter frame design, thus improving user experience and business efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KUAILUN INTELLIGENT TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-26
AI Technical Summary
Existing scooter frames are unstable, and their wiring is complex and prone to loosening, leading to safety hazards and high costs, which negatively impact user experience and business profits.
The scooter frame is made of welded steel structural profile tubes. A support platform is set on the side of the body to form a cable tray. The support platform is fixedly connected to the side of the body and is hollow inside to fix the battery. The support platform and the body are welded by argon arc welding to increase structural stability and strength. The wiring harness is fixed through the side cable tray, and the appearance is simple.
This invention achieves a scooter frame that is simple in structure, high in strength, low in cost, and high in safety, reducing production and maintenance costs, avoiding the safety risks of loose wiring harnesses, and improving user experience and business efficiency.
Smart Images

Figure CN224277427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scooter technology, and to a scooter frame and scooter with a stable structure and side wiring. Background Technology
[0002] Electric scooters are based on traditional human-powered skateboards, powered by a built-in battery, primarily a lithium battery pack. Compared to traditional electric bicycles, electric scooters have advantages such as simple structure, small wheels, lightweight and convenient operation, and the ability to save significant social resources, making them popular among the general public.
[0003] However, most scooters currently use aluminum or iron frames, which are not only simple in design, but also have complex parts manufacturing processes, are expensive, and are easily worn out after a period of use, and are not strong enough; moreover, the wiring of existing scooter frames is prone to detachment, which can easily cause danger.
[0004] For example, aluminum frames are generally made of profiles, and the cost of aluminum materials plus processing is 2-3 times that of iron frames; the structure is not stable enough; the cables are generally routed in the profile holes on the left and right sides without proper wrapping, and the cables are easy to pull off when encountering particularly bumpy roads, posing a riding hazard.
[0005] For example, a steel frame is generally formed by welding iron plates and pipes. Due to the manufacturing process, the wiring is usually routed externally. Holes are drilled in the frame and the wires are then bundled on the outside with cable ties. This wiring method has the following disadvantages: First, using cable ties to bind the wire harness increases labor costs; second, during repairs, the cable ties need to be cut, repaired, and then re-tied, which consumers cannot do themselves. Moreover, these two steps will greatly increase the repair time when sending the vehicle back to the factory for repair; third, it greatly affects the aesthetics.
[0006] The aforementioned problems have caused significant disruption to user experience, resulted in substantial financial waste for businesses, and lowered user expectations due to the high cost.
[0007] In summary, there is a need to provide a scooter frame that is aesthetically pleasing, simple in structure, high in strength, inexpensive, and easy to route cables to solve the above problems. Summary of the Invention
[0008] In view of the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a scooter frame and scooter with a stable structure and side wiring.
[0009] The technical solution adopted by this utility model to solve its technical problem is:
[0010] A scooter frame with a robust structure and side wiring includes a head tube, a slant tube, a frame, and a rear fork, which are welded and fixed in sequence. The head tube, slant tube, and frame are made of steel structural profile tubing. The battery is placed inside the hollow frame, and a front plug is fixed to the front of the frame to form a semi-enclosed environment for the battery. Multiple support platforms are set on both sides of the frame, and cavities are left between the support platforms and the sides of the frame to form cable channels for passing through and constraining the wiring harness from the rear of the frame. The support platforms include interconnected connecting parts and plate structures. The connecting parts are fixedly connected to the sides of the frame, and the plate structures are connected to the upper shell of the scooter frame.
[0011] Furthermore, the connecting part is set as an "L" shaped plate, with one end of the two connecting parts fixedly connected to the side of the vehicle body, and the other end of the two connecting parts connected to both ends of the plate structure.
[0012] Furthermore, the plate structure is provided with holes to facilitate fixing the upper shell of the vehicle body with screws.
[0013] Furthermore, the support platform is formed by sheet metal stamping.
[0014] Furthermore, the hollow cavity of the vehicle body is provided with side foam to fix the battery position, and a handle is provided at the rear of the battery.
[0015] Furthermore, the vehicle body is constructed using square steel tubing.
[0016] Furthermore, the connection angle between the inclined tube and the vehicle body is set to 51°~55°; the connection angle between the head tube and the inclined tube is set to 72°~76°.
[0017] Furthermore, the support platform and the front plug are welded to the vehicle body.
[0018] Furthermore, the rear fork includes a left rear fork and a right rear fork, both of which are directly formed from sheet metal.
[0019] A scooter comprising a scooter frame with a robust structure and side cabling as described in any one of the preceding claims.
[0020] The advantages of this utility model are as follows:
[0021] (1) Compared with the aluminum profile scooter frames currently on the market, the structure of the scooter frame of this utility model is very simple. The whole is made of standard tubes and simple sheet metal forming, which greatly reduces the material and processing costs; saves the cost of mold opening and customization, reduces the development cost of enterprises, and realizes cost control for mass production.
[0022] (2) The scooter frame of this utility model has a compact structure, which ensures the overall rigidity and strength (the head tube, slant tube and body are all made of national standard profile steel pipes. The square profile steel body provides rigidity for the whole vehicle and can fix the battery inside. The body and slant tube, support platform, left rear fork, right rear fork and front end are all welded by argon arc welding, which increases the stability and strength of the structure). Compared with aluminum alloy, it is not easy to fail under stress, and the safety can also be guaranteed.
[0023] (3) The scooter frame of this utility model has side wiring. The support platforms on both sides of the vehicle body are equipped with wire grooves to constrain and fix the wiring, which avoids the safety risk of the wire harness constantly shaking on bumpy road sections and causing it to come loose. This greatly reduces customer complaints and ensures mass production stability.
[0024] Furthermore, the side wiring can be concealed by the decorative parts on the top of the vehicle body. Therefore, the production and assembly complexity of this new type of scooter frame is greatly reduced compared to the wiring inside the vehicle body on the market, and the appearance is also simpler.
[0025] (4) The scooter frame of this utility model has a simple and smooth shape, which also solves the problems of disharmony in the overall shape and compatibility. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the scooter frame of this utility model. Figure 1 ;
[0027] Figure 2 This is a schematic diagram of the scooter frame of this utility model. Figure 2 ;
[0028] Figure 3 This is a schematic diagram of the scooter frame of this utility model. Figure 3 ;
[0029] Figure 4 An enlarged view of the support platform;
[0030] Wherein, 1-head tube; 2-slanted tube; 3-front plug;
[0031] 4-Support platform, 41-Wire channel, 42-Intermediate hole, 43-Connecting part, 44-Plate structure;
[0032] 5-Body frame; 6-Left rear fork; 7-Right rear fork. Detailed Implementation
[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0034] like Figures 1 to 4 As shown, the scooter frame in this embodiment includes a head tube 1, a slant tube 2, a front plug 3, a support platform 4, a frame 5, a left rear fork 6, and a right rear fork 7;
[0035] In this embodiment, the head tube 1 and the inclined tube 2 are connected by welding. The connection angle between the head tube 1 and the inclined tube 2 is set to 72°~76°.
[0036] The inclined tube 2 is connected to the vehicle body 5. In this embodiment, the inclined tube 2 is fixedly connected to the vehicle body 5 by welding. The connection angle between the inclined tube 2 and the vehicle body 5 is set to 51°~55°.
[0037] In this embodiment, the head tube 1, the inclined tube 2, and the body 5 are made of national standard profile steel pipes, which improves the overall structural strength and greatly reduces the use of sheet metal. Moreover, the direct use of standard pipe materials simplifies the structure, enables mass production, saves mold costs, and significantly reduces costs.
[0038] The vehicle body 5 uses square-shaped steel tubing with a hollow interior. This provides rigidity for the entire vehicle while also securing the battery and other components. This design protects the battery; by placing the battery and circuitry within the hollow cavity of the body 5, safety is enhanced and lifespan is extended. Specifically, the battery can be directly pushed into the hollow cavity of the body 5, which is secured with side foam. A handle at the rear of the battery allows for easy removal.
[0039] Among them, a front plug 3 is set at the front end of the vehicle body 5 to form a closed state at the front end of the vehicle body 5, preventing rainwater, dust and other substances from entering the interior of the vehicle body 5 from the front end, thereby causing dangers such as contamination to the battery.
[0040] In this embodiment, the front plug 3 is fixed to the front end of the vehicle body 5 by welding.
[0041] In this embodiment, the front plug 3 is formed from sheet metal, reducing costs. The upturned end of the front plug 3 has a screw hole for fixing the front end of the vehicle body shell.
[0042] In this embodiment, multiple support platforms 4 are provided on both sides of the vehicle body 5. The support platforms 4 and the vehicle body 5 are connected and fixed by welding.
[0043] Specifically, the support platform 4 includes a wire channel 41, a central hole 42, a connecting part 43, and a plate structure 44. The connecting part 43 is L-shaped. One end of the connecting part 43 is fixedly connected to the side of the vehicle body 5, and the other end of the connecting part 43 is connected to the end of the plate structure 44. The two connecting parts 43 together support a plate structure 44 to form a stable structure, thereby supporting and fixing the plate structure 44.
[0044] The plate structure 44 is provided with a central hole 42, which serves as a screw through hole for fixing the body trim parts, such as the upper shell of the body, on the upper part of the vehicle body 5. The central hole 42 can be directly cut out, saving costs. Moreover, the plate structure 44 can be strengthened by stamping ribs.
[0045] Because the connecting part 43 is designed as an "L-shape", a space is formed between the outer side of the vehicle body 5 and the entire support platform 4 as a wire passage trough 44, which can be used to pass the wire harness from the rear of the vehicle body 5, avoiding the safety risk of the wire harness constantly shaking and becoming loose on bumpy road sections, thus enhancing safety.
[0046] In this embodiment, the support platform 4 is a single piece, formed by sheet metal stamping, which saves the cost of this part.
[0047] The left rear fork 6 and right rear fork 7 are respectively connected to the rear sides of the vehicle body 5. In this embodiment, the left rear fork 6 and right rear fork 7 are fixed to the vehicle body 5 by welding. In this embodiment, the left rear fork 6 and right rear fork 7 are directly cut from sheet metal, saving the cost of mold customization and reducing costs.
[0048] In this embodiment, the head tube 1, the diagonal tube 2, and the body 5 are all made of national standard steel pipes, which improves the rigidity and structural strength of the frame. Moreover, the body 5 is connected and fixed to the diagonal tube 2, the support platform 4, the left rear fork 6, the right rear fork 7, and the front plug 3 by welding, thus forming a whole and further increasing the stability and strength of the structure.
[0049] The above description is merely a preferred embodiment of the present utility model and does not constitute a limitation on the scope of protection of the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the scope of protection of the claims of the present utility model.
Claims
1. A structural stable and side edge wiring scooter frame, characterized by, The frame includes a head tube, a slant tube, a body, and a rear fork, which are welded and fixed in sequence. The head tube, slant tube, and body are made of steel structural profile tubing. The battery is placed inside the hollow body, and a front plug is fixed to the front of the body to form a semi-enclosed environment for the battery inside the body. Multiple support platforms are set on both sides of the body, and a cavity is left between the support platforms and the sides of the body to form a wire channel to pass through and constrain the wire harness from the rear of the body. The support platform includes interconnected connecting parts and plate structures. The connecting parts are fixedly connected to the sides of the body, and the plate structure is connected to the upper shell of the scooter body.
2. The scooter frame with a stable structure and side wiring as described in claim 1, characterized in that, The connecting part is set as an "L" shaped plate, with one end of the two connecting parts fixedly connected to the side of the vehicle body, and the other end of the two connecting parts connected to both ends of the plate structure.
3. The scooter frame with a stable structure and side wiring as described in claim 1 or 2, characterized in that, The plate structure has holes for fixing the upper shell of the vehicle body with screws.
4. The scooter frame with a stable structure and side wiring as described in claim 1 or 2, characterized in that, The support platform is formed by sheet metal stamping.
5. The scooter frame with a stable structure and side wiring as described in claim 1 or 2, characterized in that, The hollow cavity of the vehicle body is equipped with side foam to fix the battery position, and a handle is provided at the rear of the battery.
6. The scooter frame with a robust structure and side wiring as described in claim 1 or 2, characterized in that, The vehicle body is made of square steel tubing.
7. The scooter frame with a robust structure and side wiring as described in claim 1 or 2, characterized in that, The connection angle between the inclined tube and the vehicle body is set to 51°~55°; the connection angle between the head tube and the inclined tube is set to 72°~76°.
8. The scooter frame with a robust structure and side wiring as described in claim 1 or 2, characterized in that, The support platform and the front plug are welded to the vehicle body.
9. The scooter frame with a robust structure and side wiring as described in claim 1 or 2, characterized in that, The rear fork section includes a left rear fork and a right rear fork, both of which are made directly from sheet metal.
10. A scooter, characterized in that, The scooter includes: a scooter frame with a robust structure and side cabling as described in any one of claims 1-9.